79078280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 182574000

約数和(自身を除く): 103495720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 97, 178, 194, 229, 356, 388, 445, 458, 485, 712, 776, 890, 916, 970, 1145, 1780, 1832, 1940, 2290, 3560, 3880, 4580, 8633, 9160, 17266, 20381, 22213, 34532, 40762, 43165, 44426, 69064, 81524, 86330, 88852, 101905, 111065, 163048, 172660, 177704, 203810, 222130, 345320, 407620, 444260, 815240, 888520, 1976957, 3953914, 7907828, 9884785, 15815656, 19769570, 39539140, 79078280]

約数ペア:

[(1, 79078280), (2, 39539140), (4, 19769570), (5, 15815656), (8, 9884785), (10, 7907828), (20, 3953914), (40, 1976957), (89, 888520), (97, 815240), (178, 444260), (194, 407620), (229, 345320), (356, 222130), (388, 203810), (445, 177704), (458, 172660), (485, 163048), (712, 111065), (776, 101905), (890, 88852), (916, 86330), (970, 81524), (1145, 69064), (1780, 44426), (1832, 43165), (1940, 40762), (2290, 34532), (3560, 22213), (3880, 20381), (4580, 17266), (8633, 9160)]