637448260

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{2281}}^1$

素因数の和:2536

約数の個数: 48

約数和(自身を含む): 1362901680

約数和(自身を除く): 725453420

約数列:

[1, 2, 4, 5, 10, 20, 89, 157, 178, 314, 356, 445, 628, 785, 890, 1570, 1780, 2281, 3140, 4562, 9124, 11405, 13973, 22810, 27946, 45620, 55892, 69865, 139730, 203009, 279460, 358117, 406018, 716234, 812036, 1015045, 1432468, 1790585, 2030090, 3581170, 4060180, 7162340, 31872413, 63744826, 127489652, 159362065, 318724130, 637448260]

約数ペア:

[(1, 637448260), (2, 318724130), (4, 159362065), (5, 127489652), (10, 63744826), (20, 31872413), (89, 7162340), (157, 4060180), (178, 3581170), (314, 2030090), (356, 1790585), (445, 1432468), (628, 1015045), (785, 812036), (890, 716234), (1570, 406018), (1780, 358117), (2281, 279460), (3140, 203009), (4562, 139730), (9124, 69865), (11405, 55892), (13973, 45620), (22810, 27946)]