72974020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521243}}^1$

素因数の和:521259

約数の個数: 24

約数和(自身を含む): 175137984

約数和(自身を除く): 102163964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521243, 1042486, 2084972, 2606215, 3648701, 5212430, 7297402, 10424860, 14594804, 18243505, 36487010, 72974020]

約数ペア:

[(1, 72974020), (2, 36487010), (4, 18243505), (5, 14594804), (7, 10424860), (10, 7297402), (14, 5212430), (20, 3648701), (28, 2606215), (35, 2084972), (70, 1042486), (140, 521243)]