19674340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1579}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 47779200

約数和(自身を除く): 28104860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1579, 1780, 2492, 3115, 3158, 6230, 6316, 7895, 11053, 12460, 15790, 22106, 31580, 44212, 55265, 110530, 140531, 221060, 281062, 562124, 702655, 983717, 1405310, 1967434, 2810620, 3934868, 4918585, 9837170, 19674340]

約数ペア:

[(1, 19674340), (2, 9837170), (4, 4918585), (5, 3934868), (7, 2810620), (10, 1967434), (14, 1405310), (20, 983717), (28, 702655), (35, 562124), (70, 281062), (89, 221060), (140, 140531), (178, 110530), (356, 55265), (445, 44212), (623, 31580), (890, 22106), (1246, 15790), (1579, 12460), (1780, 11053), (2492, 7895), (3115, 6316), (3158, 6230)]