77487920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1831}}^1$

素因数の和:1890

約数の個数: 60

約数和(自身を含む): 188435856

約数和(自身を除く): 110947936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 529, 920, 1058, 1831, 1840, 2116, 2645, 3662, 4232, 5290, 7324, 8464, 9155, 10580, 14648, 18310, 21160, 29296, 36620, 42113, 42320, 73240, 84226, 146480, 168452, 210565, 336904, 421130, 673808, 842260, 968599, 1684520, 1937198, 3369040, 3874396, 4842995, 7748792, 9685990, 15497584, 19371980, 38743960, 77487920]

約数ペア:

[(1, 77487920), (2, 38743960), (4, 19371980), (5, 15497584), (8, 9685990), (10, 7748792), (16, 4842995), (20, 3874396), (23, 3369040), (40, 1937198), (46, 1684520), (80, 968599), (92, 842260), (115, 673808), (184, 421130), (230, 336904), (368, 210565), (460, 168452), (529, 146480), (920, 84226), (1058, 73240), (1831, 42320), (1840, 42113), (2116, 36620), (2645, 29296), (3662, 21160), (4232, 18310), (5290, 14648), (7324, 10580), (8464, 9155)]