213090920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{503}}^1$

素因数の和:627

約数の個数: 128

約数和(自身を含む): 587865600

約数和(自身を除く): 374774680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 89, 119, 136, 140, 170, 178, 238, 280, 340, 356, 445, 476, 503, 595, 623, 680, 712, 890, 952, 1006, 1190, 1246, 1513, 1780, 2012, 2380, 2492, 2515, 3026, 3115, 3521, 3560, 4024, 4760, 4984, 5030, 6052, 6230, 7042, 7565, 8551, 10060, 10591, 12104, 12460, 14084, 15130, 17102, 17605, 20120, 21182, 24920, 28168, 30260, 34204, 35210, 42364, 42755, 44767, 52955, 59857, 60520, 68408, 70420, 84728, 85510, 89534, 105910, 119714, 140840, 171020, 179068, 211820, 223835, 239428, 299285, 313369, 342040, 358136, 423640, 447670, 478856, 598570, 626738, 761039, 895340, 1197140, 1253476, 1522078, 1566845, 1790680, 2394280, 2506952, 3044156, 3133690, 3805195, 5327273, 6088312, 6267380, 7610390, 10654546, 12534760, 15220780, 21309092, 26636365, 30441560, 42618184, 53272730, 106545460, 213090920]

約数ペア:

[(1, 213090920), (2, 106545460), (4, 53272730), (5, 42618184), (7, 30441560), (8, 26636365), (10, 21309092), (14, 15220780), (17, 12534760), (20, 10654546), (28, 7610390), (34, 6267380), (35, 6088312), (40, 5327273), (56, 3805195), (68, 3133690), (70, 3044156), (85, 2506952), (89, 2394280), (119, 1790680), (136, 1566845), (140, 1522078), (170, 1253476), (178, 1197140), (238, 895340), (280, 761039), (340, 626738), (356, 598570), (445, 478856), (476, 447670), (503, 423640), (595, 358136), (623, 342040), (680, 313369), (712, 299285), (890, 239428), (952, 223835), (1006, 211820), (1190, 179068), (1246, 171020), (1513, 140840), (1780, 119714), (2012, 105910), (2380, 89534), (2492, 85510), (2515, 84728), (3026, 70420), (3115, 68408), (3521, 60520), (3560, 59857), (4024, 52955), (4760, 44767), (4984, 42755), (5030, 42364), (6052, 35210), (6230, 34204), (7042, 30260), (7565, 28168), (8551, 24920), (10060, 21182), (10591, 20120), (12104, 17605), (12460, 17102), (14084, 15130)]