321559280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18523}}^1$

素因数の和:18574

約数の個数: 80

約数和(自身を含む): 882038784

約数和(自身を除く): 560479504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 17360, 18523, 37046, 74092, 92615, 129661, 148184, 185230, 259322, 296368, 370460, 518644, 574213, 648305, 740920, 1037288, 1148426, 1296610, 1481840, 2074576, 2296852, 2593220, 2871065, 4019491, 4593704, 5186440, 5742130, 8038982, 9187408, 10372880, 11484260, 16077964, 20097455, 22968520, 32155928, 40194910, 45937040, 64311856, 80389820, 160779640, 321559280]

約数ペア:

[(1, 321559280), (2, 160779640), (4, 80389820), (5, 64311856), (7, 45937040), (8, 40194910), (10, 32155928), (14, 22968520), (16, 20097455), (20, 16077964), (28, 11484260), (31, 10372880), (35, 9187408), (40, 8038982), (56, 5742130), (62, 5186440), (70, 4593704), (80, 4019491), (112, 2871065), (124, 2593220), (140, 2296852), (155, 2074576), (217, 1481840), (248, 1296610), (280, 1148426), (310, 1037288), (434, 740920), (496, 648305), (560, 574213), (620, 518644), (868, 370460), (1085, 296368), (1240, 259322), (1736, 185230), (2170, 148184), (2480, 129661), (3472, 92615), (4340, 74092), (8680, 37046), (17360, 18523)]