127764020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{821}}^1$

素因数の和:1112

約数の個数: 48

約数和(自身を含む): 278401536

約数和(自身を除く): 150637516

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 251, 310, 502, 620, 821, 1004, 1255, 1642, 2510, 3284, 4105, 5020, 7781, 8210, 15562, 16420, 25451, 31124, 38905, 50902, 77810, 101804, 127255, 155620, 206071, 254510, 412142, 509020, 824284, 1030355, 2060710, 4121420, 6388201, 12776402, 25552804, 31941005, 63882010, 127764020]

約数ペア:

[(1, 127764020), (2, 63882010), (4, 31941005), (5, 25552804), (10, 12776402), (20, 6388201), (31, 4121420), (62, 2060710), (124, 1030355), (155, 824284), (251, 509020), (310, 412142), (502, 254510), (620, 206071), (821, 155620), (1004, 127255), (1255, 101804), (1642, 77810), (2510, 50902), (3284, 38905), (4105, 31124), (5020, 25451), (7781, 16420), (8210, 15562)]