28081920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 91832832

約数和(自身を除く): 63750912

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 103, 120, 128, 142, 160, 192, 206, 213, 240, 256, 284, 309, 320, 355, 384, 412, 426, 480, 515, 568, 618, 640, 710, 768, 824, 852, 960, 1030, 1065, 1136, 1236, 1280, 1420, 1545, 1648, 1704, 1920, 2060, 2130, 2272, 2472, 2840, 3090, 3296, 3408, 3840, 4120, 4260, 4544, 4944, 5680, 6180, 6592, 6816, 7313, 8240, 8520, 9088, 9888, 11360, 12360, 13184, 13632, 14626, 16480, 17040, 18176, 19776, 21939, 22720, 24720, 26368, 27264, 29252, 32960, 34080, 36565, 39552, 43878, 45440, 49440, 54528, 58504, 65920, 68160, 73130, 79104, 87756, 90880, 98880, 109695, 117008, 131840, 136320, 146260, 175512, 197760, 219390, 234016, 272640, 292520, 351024, 395520, 438780, 468032, 585040, 702048, 877560, 936064, 1170080, 1404096, 1755120, 1872128, 2340160, 2808192, 3510240, 4680320, 5616384, 7020480, 9360640, 14040960, 28081920]

約数ペア:

[(1, 28081920), (2, 14040960), (3, 9360640), (4, 7020480), (5, 5616384), (6, 4680320), (8, 3510240), (10, 2808192), (12, 2340160), (15, 1872128), (16, 1755120), (20, 1404096), (24, 1170080), (30, 936064), (32, 877560), (40, 702048), (48, 585040), (60, 468032), (64, 438780), (71, 395520), (80, 351024), (96, 292520), (103, 272640), (120, 234016), (128, 219390), (142, 197760), (160, 175512), (192, 146260), (206, 136320), (213, 131840), (240, 117008), (256, 109695), (284, 98880), (309, 90880), (320, 87756), (355, 79104), (384, 73130), (412, 68160), (426, 65920), (480, 58504), (515, 54528), (568, 49440), (618, 45440), (640, 43878), (710, 39552), (768, 36565), (824, 34080), (852, 32960), (960, 29252), (1030, 27264), (1065, 26368), (1136, 24720), (1236, 22720), (1280, 21939), (1420, 19776), (1545, 18176), (1648, 17040), (1704, 16480), (1920, 14626), (2060, 13632), (2130, 13184), (2272, 12360), (2472, 11360), (2840, 9888), (3090, 9088), (3296, 8520), (3408, 8240), (3840, 7313), (4120, 6816), (4260, 6592), (4544, 6180), (4944, 5680)]