20173215740

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1\times {\mathrm{9749}}^1$

素因数の和:10574

約数の個数: 48

約数和(自身を含む): 42702660000

約数和(自身を除く): 22529444260

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 659, 785, 1318, 1570, 2636, 3140, 3295, 6590, 9749, 13180, 19498, 38996, 48745, 97490, 103463, 194980, 206926, 413852, 517315, 1034630, 1530593, 2069260, 3061186, 6122372, 6424591, 7652965, 12849182, 15305930, 25698364, 30611860, 32122955, 64245910, 128491820, 1008660787, 2017321574, 4034643148, 5043303935, 10086607870, 20173215740]

約数ペア:

[(1, 20173215740), (2, 10086607870), (4, 5043303935), (5, 4034643148), (10, 2017321574), (20, 1008660787), (157, 128491820), (314, 64245910), (628, 32122955), (659, 30611860), (785, 25698364), (1318, 15305930), (1570, 12849182), (2636, 7652965), (3140, 6424591), (3295, 6122372), (6590, 3061186), (9749, 2069260), (13180, 1530593), (19498, 1034630), (38996, 517315), (48745, 413852), (97490, 206926), (103463, 194980)]