215121010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{18593}}^1$

素因数の和:18702

約数の個数: 32

約数和(自身を含む): 421711920

約数和(自身を除く): 206590910

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 5785, 11570, 18593, 37186, 92965, 185930, 241709, 483418, 1208545, 1654777, 2417090, 3309554, 8273885, 16547770, 21512101, 43024202, 107560505, 215121010]

約数ペア:

[(1, 215121010), (2, 107560505), (5, 43024202), (10, 21512101), (13, 16547770), (26, 8273885), (65, 3309554), (89, 2417090), (130, 1654777), (178, 1208545), (445, 483418), (890, 241709), (1157, 185930), (2314, 92965), (5785, 37186), (11570, 18593)]