861410640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{115781}}^1$

素因数の和:115828

約数の個数: 80

約数和(自身を含む): 2756537856

約数和(自身を除く): 1895127216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 115781, 231562, 347343, 463124, 578905, 694686, 926248, 1157810, 1389372, 1736715, 1852496, 2315620, 2778744, 3473430, 3589211, 4631240, 5557488, 6946860, 7178422, 9262480, 10767633, 13893720, 14356844, 17946055, 21535266, 27787440, 28713688, 35892110, 43070532, 53838165, 57427376, 71784220, 86141064, 107676330, 143568440, 172282128, 215352660, 287136880, 430705320, 861410640]

約数ペア:

[(1, 861410640), (2, 430705320), (3, 287136880), (4, 215352660), (5, 172282128), (6, 143568440), (8, 107676330), (10, 86141064), (12, 71784220), (15, 57427376), (16, 53838165), (20, 43070532), (24, 35892110), (30, 28713688), (31, 27787440), (40, 21535266), (48, 17946055), (60, 14356844), (62, 13893720), (80, 10767633), (93, 9262480), (120, 7178422), (124, 6946860), (155, 5557488), (186, 4631240), (240, 3589211), (248, 3473430), (310, 2778744), (372, 2315620), (465, 1852496), (496, 1736715), (620, 1389372), (744, 1157810), (930, 926248), (1240, 694686), (1488, 578905), (1860, 463124), (2480, 347343), (3720, 231562), (7440, 115781)]