201218320

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1$

素因数の和:640

約数の個数: 80

約数和(自身を含む): 482112000

約数和(自身を除く): 280893680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 89, 118, 178, 236, 295, 356, 445, 472, 479, 590, 712, 890, 944, 958, 1180, 1424, 1780, 1916, 2360, 2395, 3560, 3832, 4720, 4790, 5251, 7120, 7664, 9580, 10502, 19160, 21004, 26255, 28261, 38320, 42008, 42631, 52510, 56522, 84016, 85262, 105020, 113044, 141305, 170524, 210040, 213155, 226088, 282610, 341048, 420080, 426310, 452176, 565220, 682096, 852620, 1130440, 1705240, 2260880, 2515229, 3410480, 5030458, 10060916, 12576145, 20121832, 25152290, 40243664, 50304580, 100609160, 201218320]

約数ペア:

[(1, 201218320), (2, 100609160), (4, 50304580), (5, 40243664), (8, 25152290), (10, 20121832), (16, 12576145), (20, 10060916), (40, 5030458), (59, 3410480), (80, 2515229), (89, 2260880), (118, 1705240), (178, 1130440), (236, 852620), (295, 682096), (356, 565220), (445, 452176), (472, 426310), (479, 420080), (590, 341048), (712, 282610), (890, 226088), (944, 213155), (958, 210040), (1180, 170524), (1424, 141305), (1780, 113044), (1916, 105020), (2360, 85262), (2395, 84016), (3560, 56522), (3832, 52510), (4720, 42631), (4790, 42008), (5251, 38320), (7120, 28261), (7664, 26255), (9580, 21004), (10502, 19160)]