19856590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 41731200

約数和(自身を除く): 21874610

約数列:

[1, 2, 5, 10, 13, 23, 26, 29, 46, 58, 65, 115, 130, 145, 229, 230, 290, 299, 377, 458, 598, 667, 754, 1145, 1334, 1495, 1885, 2290, 2977, 2990, 3335, 3770, 5267, 5954, 6641, 6670, 8671, 10534, 13282, 14885, 17342, 26335, 29770, 33205, 43355, 52670, 66410, 68471, 86333, 86710, 136942, 152743, 172666, 305486, 342355, 431665, 684710, 763715, 863330, 1527430, 1985659, 3971318, 9928295, 19856590]

約数ペア:

[(1, 19856590), (2, 9928295), (5, 3971318), (10, 1985659), (13, 1527430), (23, 863330), (26, 763715), (29, 684710), (46, 431665), (58, 342355), (65, 305486), (115, 172666), (130, 152743), (145, 136942), (229, 86710), (230, 86333), (290, 68471), (299, 66410), (377, 52670), (458, 43355), (598, 33205), (667, 29770), (754, 26335), (1145, 17342), (1334, 14885), (1495, 13282), (1885, 10534), (2290, 8671), (2977, 6670), (2990, 6641), (3335, 5954), (3770, 5267)]