81308260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{599}}^1\times {\mathrm{617}}^1$

素因数の和:1236

約数の個数: 48

約数和(自身を含む): 186883200

約数和(自身を除く): 105574940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 599, 617, 1198, 1234, 2396, 2468, 2995, 3085, 5990, 6170, 6589, 6787, 11980, 12340, 13178, 13574, 26356, 27148, 32945, 33935, 65890, 67870, 131780, 135740, 369583, 739166, 1478332, 1847915, 3695830, 4065413, 7391660, 8130826, 16261652, 20327065, 40654130, 81308260]

約数ペア:

[(1, 81308260), (2, 40654130), (4, 20327065), (5, 16261652), (10, 8130826), (11, 7391660), (20, 4065413), (22, 3695830), (44, 1847915), (55, 1478332), (110, 739166), (220, 369583), (599, 135740), (617, 131780), (1198, 67870), (1234, 65890), (2396, 33935), (2468, 32945), (2995, 27148), (3085, 26356), (5990, 13574), (6170, 13178), (6589, 12340), (6787, 11980)]