65538980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13267}}^1$

素因数の和:13308

約数の個数: 48

約数和(自身を含む): 156031680

約数和(自身を除く): 90492700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 13267, 26534, 53068, 66335, 132670, 172471, 252073, 265340, 344942, 504146, 689884, 862355, 1008292, 1260365, 1724710, 2520730, 3276949, 3449420, 5041460, 6553898, 13107796, 16384745, 32769490, 65538980]

約数ペア:

[(1, 65538980), (2, 32769490), (4, 16384745), (5, 13107796), (10, 6553898), (13, 5041460), (19, 3449420), (20, 3276949), (26, 2520730), (38, 1724710), (52, 1260365), (65, 1008292), (76, 862355), (95, 689884), (130, 504146), (190, 344942), (247, 265340), (260, 252073), (380, 172471), (494, 132670), (988, 66335), (1235, 53068), (2470, 26534), (4940, 13267)]