398316940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{4357}}^1$

素因数の和:5026

約数の個数: 48

約数和(自身を含む): 957644352

約数和(自身を除く): 559327412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 653, 1306, 2612, 3265, 4357, 4571, 6530, 8714, 9142, 13060, 17428, 18284, 21785, 22855, 30499, 43570, 45710, 60998, 87140, 91420, 121996, 152495, 304990, 609980, 2845121, 5690242, 11380484, 14225605, 19915847, 28451210, 39831694, 56902420, 79663388, 99579235, 199158470, 398316940]

約数ペア:

[(1, 398316940), (2, 199158470), (4, 99579235), (5, 79663388), (7, 56902420), (10, 39831694), (14, 28451210), (20, 19915847), (28, 14225605), (35, 11380484), (70, 5690242), (140, 2845121), (653, 609980), (1306, 304990), (2612, 152495), (3265, 121996), (4357, 91420), (4571, 87140), (6530, 60998), (8714, 45710), (9142, 43570), (13060, 30499), (17428, 22855), (18284, 21785)]