28829840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1459}}^1$

素因数の和:1504

約数の個数: 80

約数和(自身を含む): 76036800

約数和(自身を除く): 47206960

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, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1459, 1520, 1976, 2470, 2918, 3952, 4940, 5836, 7295, 9880, 11672, 14590, 18967, 19760, 23344, 27721, 29180, 37934, 55442, 58360, 75868, 94835, 110884, 116720, 138605, 151736, 189670, 221768, 277210, 303472, 360373, 379340, 443536, 554420, 720746, 758680, 1108840, 1441492, 1517360, 1801865, 2217680, 2882984, 3603730, 5765968, 7207460, 14414920, 28829840]

約数ペア:

[(1, 28829840), (2, 14414920), (4, 7207460), (5, 5765968), (8, 3603730), (10, 2882984), (13, 2217680), (16, 1801865), (19, 1517360), (20, 1441492), (26, 1108840), (38, 758680), (40, 720746), (52, 554420), (65, 443536), (76, 379340), (80, 360373), (95, 303472), (104, 277210), (130, 221768), (152, 189670), (190, 151736), (208, 138605), (247, 116720), (260, 110884), (304, 94835), (380, 75868), (494, 58360), (520, 55442), (760, 37934), (988, 29180), (1040, 27721), (1235, 23344), (1459, 19760), (1520, 18967), (1976, 14590), (2470, 11672), (2918, 9880), (3952, 7295), (4940, 5836)]