20176360540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{664133}}^1$

素因数の和:664187

約数の個数: 72

約数和(自身を含む): 50877977472

約数和(自身を除く): 30701616932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 980, 1085, 1519, 2170, 3038, 4340, 6076, 7595, 15190, 30380, 664133, 1328266, 2656532, 3320665, 4648931, 6641330, 9297862, 13282660, 18595724, 20588123, 23244655, 32542517, 41176246, 46489310, 65085034, 82352492, 92978620, 102940615, 130170068, 144116861, 162712585, 205881230, 288233722, 325425170, 411762460, 576467444, 650850340, 720584305, 1008818027, 1441168610, 2017636054, 2882337220, 4035272108, 5044090135, 10088180270, 20176360540]

約数ペア:

[(1, 20176360540), (2, 10088180270), (4, 5044090135), (5, 4035272108), (7, 2882337220), (10, 2017636054), (14, 1441168610), (20, 1008818027), (28, 720584305), (31, 650850340), (35, 576467444), (49, 411762460), (62, 325425170), (70, 288233722), (98, 205881230), (124, 162712585), (140, 144116861), (155, 130170068), (196, 102940615), (217, 92978620), (245, 82352492), (310, 65085034), (434, 46489310), (490, 41176246), (620, 32542517), (868, 23244655), (980, 20588123), (1085, 18595724), (1519, 13282660), (2170, 9297862), (3038, 6641330), (4340, 4648931), (6076, 3320665), (7595, 2656532), (15190, 1328266), (30380, 664133)]