656204940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{569}}^1$

素因数の和:776

約数の個数: 144

約数和(自身を含む): 2054052000

約数和(自身を除く): 1397847060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 149, 172, 180, 215, 258, 298, 387, 430, 447, 516, 569, 596, 645, 745, 774, 860, 894, 1138, 1290, 1341, 1490, 1548, 1707, 1788, 1935, 2235, 2276, 2580, 2682, 2845, 2980, 3414, 3870, 4470, 5121, 5364, 5690, 6407, 6705, 6828, 7740, 8535, 8940, 10242, 11380, 12814, 13410, 17070, 19221, 20484, 24467, 25605, 25628, 26820, 32035, 34140, 38442, 48934, 51210, 57663, 64070, 73401, 76884, 84781, 96105, 97868, 102420, 115326, 122335, 128140, 146802, 169562, 192210, 220203, 230652, 244670, 254343, 288315, 293604, 339124, 367005, 384420, 423905, 440406, 489340, 508686, 576630, 734010, 763029, 847810, 880812, 1017372, 1101015, 1153260, 1271715, 1468020, 1526058, 1695620, 2202030, 2543430, 3052116, 3645583, 3815145, 4404060, 5086860, 7291166, 7630290, 10936749, 14582332, 15260580, 18227915, 21873498, 32810247, 36455830, 43746996, 54683745, 65620494, 72911660, 109367490, 131240988, 164051235, 218734980, 328102470, 656204940]

約数ペア:

[(1, 656204940), (2, 328102470), (3, 218734980), (4, 164051235), (5, 131240988), (6, 109367490), (9, 72911660), (10, 65620494), (12, 54683745), (15, 43746996), (18, 36455830), (20, 32810247), (30, 21873498), (36, 18227915), (43, 15260580), (45, 14582332), (60, 10936749), (86, 7630290), (90, 7291166), (129, 5086860), (149, 4404060), (172, 3815145), (180, 3645583), (215, 3052116), (258, 2543430), (298, 2202030), (387, 1695620), (430, 1526058), (447, 1468020), (516, 1271715), (569, 1153260), (596, 1101015), (645, 1017372), (745, 880812), (774, 847810), (860, 763029), (894, 734010), (1138, 576630), (1290, 508686), (1341, 489340), (1490, 440406), (1548, 423905), (1707, 384420), (1788, 367005), (1935, 339124), (2235, 293604), (2276, 288315), (2580, 254343), (2682, 244670), (2845, 230652), (2980, 220203), (3414, 192210), (3870, 169562), (4470, 146802), (5121, 128140), (5364, 122335), (5690, 115326), (6407, 102420), (6705, 97868), (6828, 96105), (7740, 84781), (8535, 76884), (8940, 73401), (10242, 64070), (11380, 57663), (12814, 51210), (13410, 48934), (17070, 38442), (19221, 34140), (20484, 32035), (24467, 26820), (25605, 25628)]