311528980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{51749}}^1$

素因数の和:51808

約数の個数: 48

約数和(自身を含む): 765072000

約数和(自身を除く): 453543020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 51749, 103498, 206996, 258745, 362243, 517490, 724486, 1034980, 1448972, 1811215, 2225207, 3622430, 4450414, 7244860, 8900828, 11126035, 15576449, 22252070, 31152898, 44504140, 62305796, 77882245, 155764490, 311528980]

約数ペア:

[(1, 311528980), (2, 155764490), (4, 77882245), (5, 62305796), (7, 44504140), (10, 31152898), (14, 22252070), (20, 15576449), (28, 11126035), (35, 8900828), (43, 7244860), (70, 4450414), (86, 3622430), (140, 2225207), (172, 1811215), (215, 1448972), (301, 1034980), (430, 724486), (602, 517490), (860, 362243), (1204, 258745), (1505, 206996), (3010, 103498), (6020, 51749)]