207181620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{18869}}^1$

素因数の和:18945

約数の個数: 72

約数和(自身を含む): 638787240

約数和(自身を除く): 431605620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 18869, 37738, 56607, 75476, 94345, 113214, 169821, 188690, 226428, 283035, 339642, 377380, 566070, 679284, 849105, 1132140, 1151009, 1698210, 2302018, 3396420, 3453027, 4604036, 5755045, 6906054, 10359081, 11510090, 13812108, 17265135, 20718162, 23020180, 34530270, 41436324, 51795405, 69060540, 103590810, 207181620]

約数ペア:

[(1, 207181620), (2, 103590810), (3, 69060540), (4, 51795405), (5, 41436324), (6, 34530270), (9, 23020180), (10, 20718162), (12, 17265135), (15, 13812108), (18, 11510090), (20, 10359081), (30, 6906054), (36, 5755045), (45, 4604036), (60, 3453027), (61, 3396420), (90, 2302018), (122, 1698210), (180, 1151009), (183, 1132140), (244, 849105), (305, 679284), (366, 566070), (549, 377380), (610, 339642), (732, 283035), (915, 226428), (1098, 188690), (1220, 169821), (1830, 113214), (2196, 94345), (2745, 75476), (3660, 56607), (5490, 37738), (10980, 18869)]