681348720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218381}}^1$

素因数の和:218410

約数の個数: 80

約数和(自身を含む): 2274666912

約数和(自身を除く): 1593318192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 218381, 436762, 655143, 873524, 1091905, 1310286, 1747048, 2183810, 2620572, 2838953, 3275715, 3494096, 4367620, 5241144, 5677906, 6551430, 8516859, 8735240, 10482288, 11355812, 13102860, 14194765, 17033718, 17470480, 22711624, 26205720, 28389530, 34067436, 42584295, 45423248, 52411440, 56779060, 68134872, 85168590, 113558120, 136269744, 170337180, 227116240, 340674360, 681348720]

約数ペア:

[(1, 681348720), (2, 340674360), (3, 227116240), (4, 170337180), (5, 136269744), (6, 113558120), (8, 85168590), (10, 68134872), (12, 56779060), (13, 52411440), (15, 45423248), (16, 42584295), (20, 34067436), (24, 28389530), (26, 26205720), (30, 22711624), (39, 17470480), (40, 17033718), (48, 14194765), (52, 13102860), (60, 11355812), (65, 10482288), (78, 8735240), (80, 8516859), (104, 6551430), (120, 5677906), (130, 5241144), (156, 4367620), (195, 3494096), (208, 3275715), (240, 2838953), (260, 2620572), (312, 2183810), (390, 1747048), (520, 1310286), (624, 1091905), (780, 873524), (1040, 655143), (1560, 436762), (3120, 218381)]