1253888000

素因数分解:

$2^{12}\times 5^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 208

約数和(自身を含む): 3271157760

約数和(自身を除く): 2017269760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 79, 80, 100, 124, 125, 128, 155, 158, 160, 200, 248, 250, 256, 310, 316, 320, 395, 400, 496, 500, 512, 620, 632, 640, 775, 790, 800, 992, 1000, 1024, 1240, 1264, 1280, 1550, 1580, 1600, 1975, 1984, 2000, 2048, 2449, 2480, 2528, 2560, 3100, 3160, 3200, 3875, 3950, 3968, 4000, 4096, 4898, 4960, 5056, 5120, 6200, 6320, 6400, 7750, 7900, 7936, 8000, 9796, 9875, 9920, 10112, 10240, 12245, 12400, 12640, 12800, 15500, 15800, 15872, 16000, 19592, 19750, 19840, 20224, 20480, 24490, 24800, 25280, 25600, 31000, 31600, 31744, 32000, 39184, 39500, 39680, 40448, 48980, 49600, 50560, 51200, 61225, 62000, 63200, 63488, 64000, 78368, 79000, 79360, 80896, 97960, 99200, 101120, 102400, 122450, 124000, 126400, 126976, 128000, 156736, 158000, 158720, 161792, 195920, 198400, 202240, 244900, 248000, 252800, 256000, 306125, 313472, 316000, 317440, 323584, 391840, 396800, 404480, 489800, 496000, 505600, 512000, 612250, 626944, 632000, 634880, 783680, 793600, 808960, 979600, 992000, 1011200, 1224500, 1253888, 1264000, 1567360, 1587200, 1617920, 1959200, 1984000, 2022400, 2449000, 2507776, 2528000, 3134720, 3174400, 3918400, 3968000, 4044800, 4898000, 5015552, 5056000, 6269440, 7836800, 7936000, 8089600, 9796000, 10031104, 10112000, 12538880, 15673600, 15872000, 19592000, 20224000, 25077760, 31347200, 39184000, 40448000, 50155520, 62694400, 78368000, 125388800, 156736000, 250777600, 313472000, 626944000, 1253888000]

約数ペア:

[(1, 1253888000), (2, 626944000), (4, 313472000), (5, 250777600), (8, 156736000), (10, 125388800), (16, 78368000), (20, 62694400), (25, 50155520), (31, 40448000), (32, 39184000), (40, 31347200), (50, 25077760), (62, 20224000), (64, 19592000), (79, 15872000), (80, 15673600), (100, 12538880), (124, 10112000), (125, 10031104), (128, 9796000), (155, 8089600), (158, 7936000), (160, 7836800), (200, 6269440), (248, 5056000), (250, 5015552), (256, 4898000), (310, 4044800), (316, 3968000), (320, 3918400), (395, 3174400), (400, 3134720), (496, 2528000), (500, 2507776), (512, 2449000), (620, 2022400), (632, 1984000), (640, 1959200), (775, 1617920), (790, 1587200), (800, 1567360), (992, 1264000), (1000, 1253888), (1024, 1224500), (1240, 1011200), (1264, 992000), (1280, 979600), (1550, 808960), (1580, 793600), (1600, 783680), (1975, 634880), (1984, 632000), (2000, 626944), (2048, 612250), (2449, 512000), (2480, 505600), (2528, 496000), (2560, 489800), (3100, 404480), (3160, 396800), (3200, 391840), (3875, 323584), (3950, 317440), (3968, 316000), (4000, 313472), (4096, 306125), (4898, 256000), (4960, 252800), (5056, 248000), (5120, 244900), (6200, 202240), (6320, 198400), (6400, 195920), (7750, 161792), (7900, 158720), (7936, 158000), (8000, 156736), (9796, 128000), (9875, 126976), (9920, 126400), (10112, 124000), (10240, 122450), (12245, 102400), (12400, 101120), (12640, 99200), (12800, 97960), (15500, 80896), (15800, 79360), (15872, 79000), (16000, 78368), (19592, 64000), (19750, 63488), (19840, 63200), (20224, 62000), (20480, 61225), (24490, 51200), (24800, 50560), (25280, 49600), (25600, 48980), (31000, 40448), (31600, 39680), (31744, 39500), (32000, 39184)]