78354980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11489}}^1$

素因数の和:11540

約数の個数: 48

約数和(自身を含む): 185310720

約数和(自身を除く): 106955740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 11489, 22978, 45956, 57445, 114890, 126379, 229780, 252758, 356159, 505516, 631895, 712318, 1263790, 1424636, 1780795, 2527580, 3561590, 3917749, 7123180, 7835498, 15670996, 19588745, 39177490, 78354980]

約数ペア:

[(1, 78354980), (2, 39177490), (4, 19588745), (5, 15670996), (10, 7835498), (11, 7123180), (20, 3917749), (22, 3561590), (31, 2527580), (44, 1780795), (55, 1424636), (62, 1263790), (110, 712318), (124, 631895), (155, 505516), (220, 356159), (310, 252758), (341, 229780), (620, 126379), (682, 114890), (1364, 57445), (1705, 45956), (3410, 22978), (6820, 11489)]