18367820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{607}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 23000500

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 607, 890, 1214, 1513, 1780, 2428, 3026, 3035, 6052, 6070, 7565, 10319, 12140, 15130, 20638, 30260, 41276, 51595, 54023, 103190, 108046, 206380, 216092, 270115, 540230, 918391, 1080460, 1836782, 3673564, 4591955, 9183910, 18367820]

約数ペア:

[(1, 18367820), (2, 9183910), (4, 4591955), (5, 3673564), (10, 1836782), (17, 1080460), (20, 918391), (34, 540230), (68, 270115), (85, 216092), (89, 206380), (170, 108046), (178, 103190), (340, 54023), (356, 51595), (445, 41276), (607, 30260), (890, 20638), (1214, 15130), (1513, 12140), (1780, 10319), (2428, 7565), (3026, 6070), (3035, 6052)]