28851420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{787}}^1$

素因数の和:859

約数の個数: 96

約数和(自身を含む): 88962048

約数和(自身を除く): 60110628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 47, 52, 60, 65, 78, 94, 130, 141, 156, 188, 195, 235, 260, 282, 390, 470, 564, 611, 705, 780, 787, 940, 1222, 1410, 1574, 1833, 2361, 2444, 2820, 3055, 3148, 3666, 3935, 4722, 6110, 7332, 7870, 9165, 9444, 10231, 11805, 12220, 15740, 18330, 20462, 23610, 30693, 36660, 36989, 40924, 47220, 51155, 61386, 73978, 102310, 110967, 122772, 147956, 153465, 184945, 204620, 221934, 306930, 369890, 443868, 480857, 554835, 613860, 739780, 961714, 1109670, 1442571, 1923428, 2219340, 2404285, 2885142, 4808570, 5770284, 7212855, 9617140, 14425710, 28851420]

約数ペア:

[(1, 28851420), (2, 14425710), (3, 9617140), (4, 7212855), (5, 5770284), (6, 4808570), (10, 2885142), (12, 2404285), (13, 2219340), (15, 1923428), (20, 1442571), (26, 1109670), (30, 961714), (39, 739780), (47, 613860), (52, 554835), (60, 480857), (65, 443868), (78, 369890), (94, 306930), (130, 221934), (141, 204620), (156, 184945), (188, 153465), (195, 147956), (235, 122772), (260, 110967), (282, 102310), (390, 73978), (470, 61386), (564, 51155), (611, 47220), (705, 40924), (780, 36989), (787, 36660), (940, 30693), (1222, 23610), (1410, 20462), (1574, 18330), (1833, 15740), (2361, 12220), (2444, 11805), (2820, 10231), (3055, 9444), (3148, 9165), (3666, 7870), (3935, 7332), (4722, 6110)]