20160921140

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{647}}^1\times {\mathrm{3517}}^1$

素因数の和:4616

約数の個数: 48

約数和(自身を含む): 42511174272

約数和(自身を除く): 22350253132

約数列:

[1, 2, 4, 5, 10, 20, 443, 647, 886, 1294, 1772, 2215, 2588, 3235, 3517, 4430, 6470, 7034, 8860, 12940, 14068, 17585, 35170, 70340, 286621, 573242, 1146484, 1433105, 1558031, 2275499, 2866210, 3116062, 4550998, 5732420, 6232124, 7790155, 9101996, 11377495, 15580310, 22754990, 31160620, 45509980, 1008046057, 2016092114, 4032184228, 5040230285, 10080460570, 20160921140]

約数ペア:

[(1, 20160921140), (2, 10080460570), (4, 5040230285), (5, 4032184228), (10, 2016092114), (20, 1008046057), (443, 45509980), (647, 31160620), (886, 22754990), (1294, 15580310), (1772, 11377495), (2215, 9101996), (2588, 7790155), (3235, 6232124), (3517, 5732420), (4430, 4550998), (6470, 3116062), (7034, 2866210), (8860, 2275499), (12940, 1558031), (14068, 1433105), (17585, 1146484), (35170, 573242), (70340, 286621)]