4722640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 12499200

約数和(自身を除く): 7776560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 239, 247, 260, 304, 380, 478, 494, 520, 760, 956, 988, 1040, 1195, 1235, 1520, 1912, 1976, 2390, 2470, 3107, 3824, 3952, 4541, 4780, 4940, 6214, 9082, 9560, 9880, 12428, 15535, 18164, 19120, 19760, 22705, 24856, 31070, 36328, 45410, 49712, 59033, 62140, 72656, 90820, 118066, 124280, 181640, 236132, 248560, 295165, 363280, 472264, 590330, 944528, 1180660, 2361320, 4722640]

約数ペア:

[(1, 4722640), (2, 2361320), (4, 1180660), (5, 944528), (8, 590330), (10, 472264), (13, 363280), (16, 295165), (19, 248560), (20, 236132), (26, 181640), (38, 124280), (40, 118066), (52, 90820), (65, 72656), (76, 62140), (80, 59033), (95, 49712), (104, 45410), (130, 36328), (152, 31070), (190, 24856), (208, 22705), (239, 19760), (247, 19120), (260, 18164), (304, 15535), (380, 12428), (478, 9880), (494, 9560), (520, 9082), (760, 6214), (956, 4940), (988, 4780), (1040, 4541), (1195, 3952), (1235, 3824), (1520, 3107), (1912, 2470), (1976, 2390)]