31050740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{863}}^1$

素因数の和:1136

約数の個数: 48

約数和(自身を含む): 74898432

約数和(自身を除く): 43847692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 863, 1028, 1285, 1726, 1799, 2570, 3452, 3598, 4315, 5140, 6041, 7196, 8630, 8995, 12082, 17260, 17990, 24164, 30205, 35980, 60410, 120820, 221791, 443582, 887164, 1108955, 1552537, 2217910, 3105074, 4435820, 6210148, 7762685, 15525370, 31050740]

約数ペア:

[(1, 31050740), (2, 15525370), (4, 7762685), (5, 6210148), (7, 4435820), (10, 3105074), (14, 2217910), (20, 1552537), (28, 1108955), (35, 887164), (70, 443582), (140, 221791), (257, 120820), (514, 60410), (863, 35980), (1028, 30205), (1285, 24164), (1726, 17990), (1799, 17260), (2570, 12082), (3452, 8995), (3598, 8630), (4315, 7196), (5140, 6041)]