398858880

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{503}}^1$

素因数の和:591

約数の個数: 256

約数和(自身を含む): 1480550400

約数和(自身を除く): 1081691520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 59, 60, 64, 70, 80, 84, 96, 105, 112, 118, 120, 128, 140, 160, 168, 177, 192, 210, 224, 236, 240, 280, 295, 320, 336, 354, 384, 413, 420, 448, 472, 480, 503, 560, 590, 640, 672, 708, 826, 840, 885, 896, 944, 960, 1006, 1120, 1180, 1239, 1344, 1416, 1509, 1652, 1680, 1770, 1888, 1920, 2012, 2065, 2240, 2360, 2478, 2515, 2688, 2832, 3018, 3304, 3360, 3521, 3540, 3776, 4024, 4130, 4480, 4720, 4956, 5030, 5664, 6036, 6195, 6608, 6720, 7042, 7080, 7545, 7552, 8048, 8260, 9440, 9912, 10060, 10563, 11328, 12072, 12390, 13216, 13440, 14084, 14160, 15090, 16096, 16520, 17605, 18880, 19824, 20120, 21126, 22656, 24144, 24780, 26432, 28168, 28320, 29677, 30180, 32192, 33040, 35210, 37760, 39648, 40240, 42252, 48288, 49560, 52815, 52864, 56336, 56640, 59354, 60360, 64384, 66080, 70420, 79296, 80480, 84504, 89031, 96576, 99120, 105630, 112672, 113280, 118708, 120720, 132160, 140840, 148385, 158592, 160960, 169008, 178062, 193152, 198240, 207739, 211260, 225344, 237416, 241440, 264320, 281680, 296770, 321920, 338016, 356124, 396480, 415478, 422520, 445155, 450688, 474832, 482880, 563360, 593540, 623217, 676032, 712248, 792960, 830956, 845040, 890310, 949664, 965760, 1038695, 1126720, 1187080, 1246434, 1352064, 1424496, 1661912, 1690080, 1780620, 1899328, 2077390, 2253440, 2374160, 2492868, 2848992, 3116085, 3323824, 3380160, 3561240, 3798656, 4154780, 4748320, 4985736, 5697984, 6232170, 6647648, 6760320, 7122480, 8309560, 9496640, 9971472, 11395968, 12464340, 13295296, 14244960, 16619120, 18993280, 19942944, 24928680, 26590592, 28489920, 33238240, 39885888, 49857360, 56979840, 66476480, 79771776, 99714720, 132952960, 199429440, 398858880]

約数ペア:

[(1, 398858880), (2, 199429440), (3, 132952960), (4, 99714720), (5, 79771776), (6, 66476480), (7, 56979840), (8, 49857360), (10, 39885888), (12, 33238240), (14, 28489920), (15, 26590592), (16, 24928680), (20, 19942944), (21, 18993280), (24, 16619120), (28, 14244960), (30, 13295296), (32, 12464340), (35, 11395968), (40, 9971472), (42, 9496640), (48, 8309560), (56, 7122480), (59, 6760320), (60, 6647648), (64, 6232170), (70, 5697984), (80, 4985736), (84, 4748320), (96, 4154780), (105, 3798656), (112, 3561240), (118, 3380160), (120, 3323824), (128, 3116085), (140, 2848992), (160, 2492868), (168, 2374160), (177, 2253440), (192, 2077390), (210, 1899328), (224, 1780620), (236, 1690080), (240, 1661912), (280, 1424496), (295, 1352064), (320, 1246434), (336, 1187080), (354, 1126720), (384, 1038695), (413, 965760), (420, 949664), (448, 890310), (472, 845040), (480, 830956), (503, 792960), (560, 712248), (590, 676032), (640, 623217), (672, 593540), (708, 563360), (826, 482880), (840, 474832), (885, 450688), (896, 445155), (944, 422520), (960, 415478), (1006, 396480), (1120, 356124), (1180, 338016), (1239, 321920), (1344, 296770), (1416, 281680), (1509, 264320), (1652, 241440), (1680, 237416), (1770, 225344), (1888, 211260), (1920, 207739), (2012, 198240), (2065, 193152), (2240, 178062), (2360, 169008), (2478, 160960), (2515, 158592), (2688, 148385), (2832, 140840), (3018, 132160), (3304, 120720), (3360, 118708), (3521, 113280), (3540, 112672), (3776, 105630), (4024, 99120), (4130, 96576), (4480, 89031), (4720, 84504), (4956, 80480), (5030, 79296), (5664, 70420), (6036, 66080), (6195, 64384), (6608, 60360), (6720, 59354), (7042, 56640), (7080, 56336), (7545, 52864), (7552, 52815), (8048, 49560), (8260, 48288), (9440, 42252), (9912, 40240), (10060, 39648), (10563, 37760), (11328, 35210), (12072, 33040), (12390, 32192), (13216, 30180), (13440, 29677), (14084, 28320), (14160, 28168), (15090, 26432), (16096, 24780), (16520, 24144), (17605, 22656), (18880, 21126), (19824, 20120)]