81167970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2851}}^1$

素因数の和:2947

約数の個数: 64

約数和(自身を含む): 212736384

約数和(自身を除く): 131568414

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 73, 78, 130, 146, 195, 219, 365, 390, 438, 730, 949, 1095, 1898, 2190, 2847, 2851, 4745, 5694, 5702, 8553, 9490, 14235, 14255, 17106, 28470, 28510, 37063, 42765, 74126, 85530, 111189, 185315, 208123, 222378, 370630, 416246, 555945, 624369, 1040615, 1111890, 1248738, 2081230, 2705599, 3121845, 5411198, 6243690, 8116797, 13527995, 16233594, 27055990, 40583985, 81167970]

約数ペア:

[(1, 81167970), (2, 40583985), (3, 27055990), (5, 16233594), (6, 13527995), (10, 8116797), (13, 6243690), (15, 5411198), (26, 3121845), (30, 2705599), (39, 2081230), (65, 1248738), (73, 1111890), (78, 1040615), (130, 624369), (146, 555945), (195, 416246), (219, 370630), (365, 222378), (390, 208123), (438, 185315), (730, 111189), (949, 85530), (1095, 74126), (1898, 42765), (2190, 37063), (2847, 28510), (2851, 28470), (4745, 17106), (5694, 14255), (5702, 14235), (8553, 9490)]