1234567540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{167}}^1\times {\mathrm{1279}}^1$

素因数の和:1489

約数の個数: 72

約数和(自身を含む): 2772725760

約数和(自身を除く): 1538158220

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 167, 170, 289, 334, 340, 578, 668, 835, 1156, 1279, 1445, 1670, 2558, 2839, 2890, 3340, 5116, 5678, 5780, 6395, 11356, 12790, 14195, 21743, 25580, 28390, 43486, 48263, 56780, 86972, 96526, 108715, 193052, 213593, 217430, 241315, 369631, 427186, 434860, 482630, 739262, 854372, 965260, 1067965, 1478524, 1848155, 2135930, 3631081, 3696310, 4271860, 7262162, 7392620, 14524324, 18155405, 36310810, 61728377, 72621620, 123456754, 246913508, 308641885, 617283770, 1234567540]

約数ペア:

[(1, 1234567540), (2, 617283770), (4, 308641885), (5, 246913508), (10, 123456754), (17, 72621620), (20, 61728377), (34, 36310810), (68, 18155405), (85, 14524324), (167, 7392620), (170, 7262162), (289, 4271860), (334, 3696310), (340, 3631081), (578, 2135930), (668, 1848155), (835, 1478524), (1156, 1067965), (1279, 965260), (1445, 854372), (1670, 739262), (2558, 482630), (2839, 434860), (2890, 427186), (3340, 369631), (5116, 241315), (5678, 217430), (5780, 213593), (6395, 193052), (11356, 108715), (12790, 96526), (14195, 86972), (21743, 56780), (25580, 48263), (28390, 43486)]