28780491760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{29833}}^1$

素因数の和:30266

約数の個数: 80

約数和(自身を含む): 69253067520

約数和(自身を除く): 40472575760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 389, 496, 620, 778, 1240, 1556, 1945, 2480, 3112, 3890, 6224, 7780, 12059, 15560, 24118, 29833, 31120, 48236, 59666, 60295, 96472, 119332, 120590, 149165, 192944, 238664, 241180, 298330, 477328, 482360, 596660, 924823, 964720, 1193320, 1849646, 2386640, 3699292, 4624115, 7398584, 9248230, 11605037, 14797168, 18496460, 23210074, 36992920, 46420148, 58025185, 73985840, 92840296, 116050370, 185680592, 232100740, 359756147, 464201480, 719512294, 928402960, 1439024588, 1798780735, 2878049176, 3597561470, 5756098352, 7195122940, 14390245880, 28780491760]

約数ペア:

[(1, 28780491760), (2, 14390245880), (4, 7195122940), (5, 5756098352), (8, 3597561470), (10, 2878049176), (16, 1798780735), (20, 1439024588), (31, 928402960), (40, 719512294), (62, 464201480), (80, 359756147), (124, 232100740), (155, 185680592), (248, 116050370), (310, 92840296), (389, 73985840), (496, 58025185), (620, 46420148), (778, 36992920), (1240, 23210074), (1556, 18496460), (1945, 14797168), (2480, 11605037), (3112, 9248230), (3890, 7398584), (6224, 4624115), (7780, 3699292), (12059, 2386640), (15560, 1849646), (24118, 1193320), (29833, 964720), (31120, 924823), (48236, 596660), (59666, 482360), (60295, 477328), (96472, 298330), (119332, 241180), (120590, 238664), (149165, 192944)]