401049740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{220357}}^1$

素因数の和:220386

約数の個数: 48

約数和(自身を含む): 1036564032

約数和(自身を除く): 635514292

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 220357, 440714, 881428, 1101785, 1542499, 2203570, 2864641, 3084998, 4407140, 5729282, 6169996, 7712495, 11458564, 14323205, 15424990, 20052487, 28646410, 30849980, 40104974, 57292820, 80209948, 100262435, 200524870, 401049740]

約数ペア:

[(1, 401049740), (2, 200524870), (4, 100262435), (5, 80209948), (7, 57292820), (10, 40104974), (13, 30849980), (14, 28646410), (20, 20052487), (26, 15424990), (28, 14323205), (35, 11458564), (52, 7712495), (65, 6169996), (70, 5729282), (91, 4407140), (130, 3084998), (140, 2864641), (182, 2203570), (260, 1542499), (364, 1101785), (455, 881428), (910, 440714), (1820, 220357)]