1620320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:88

約数の個数: 96

約数和(自身を含む): 4445280

約数和(自身を除く): 2824960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 41, 52, 65, 76, 80, 82, 95, 104, 130, 152, 160, 164, 190, 205, 208, 247, 260, 304, 328, 380, 410, 416, 494, 520, 533, 608, 656, 760, 779, 820, 988, 1040, 1066, 1235, 1312, 1520, 1558, 1640, 1976, 2080, 2132, 2470, 2665, 3040, 3116, 3280, 3895, 3952, 4264, 4940, 5330, 6232, 6560, 7790, 7904, 8528, 9880, 10127, 10660, 12464, 15580, 17056, 19760, 20254, 21320, 24928, 31160, 39520, 40508, 42640, 50635, 62320, 81016, 85280, 101270, 124640, 162032, 202540, 324064, 405080, 810160, 1620320]

約数ペア:

[(1, 1620320), (2, 810160), (4, 405080), (5, 324064), (8, 202540), (10, 162032), (13, 124640), (16, 101270), (19, 85280), (20, 81016), (26, 62320), (32, 50635), (38, 42640), (40, 40508), (41, 39520), (52, 31160), (65, 24928), (76, 21320), (80, 20254), (82, 19760), (95, 17056), (104, 15580), (130, 12464), (152, 10660), (160, 10127), (164, 9880), (190, 8528), (205, 7904), (208, 7790), (247, 6560), (260, 6232), (304, 5330), (328, 4940), (380, 4264), (410, 3952), (416, 3895), (494, 3280), (520, 3116), (533, 3040), (608, 2665), (656, 2470), (760, 2132), (779, 2080), (820, 1976), (988, 1640), (1040, 1558), (1066, 1520), (1235, 1312)]