18530720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:238

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 29732320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 59, 65, 80, 104, 118, 130, 151, 160, 208, 236, 260, 295, 302, 416, 472, 520, 590, 604, 755, 767, 944, 1040, 1180, 1208, 1510, 1534, 1888, 1963, 2080, 2360, 2416, 3020, 3068, 3835, 3926, 4720, 4832, 6040, 6136, 7670, 7852, 8909, 9440, 9815, 12080, 12272, 15340, 15704, 17818, 19630, 24160, 24544, 30680, 31408, 35636, 39260, 44545, 61360, 62816, 71272, 78520, 89090, 115817, 122720, 142544, 157040, 178180, 231634, 285088, 314080, 356360, 463268, 579085, 712720, 926536, 1158170, 1425440, 1853072, 2316340, 3706144, 4632680, 9265360, 18530720]

約数ペア:

[(1, 18530720), (2, 9265360), (4, 4632680), (5, 3706144), (8, 2316340), (10, 1853072), (13, 1425440), (16, 1158170), (20, 926536), (26, 712720), (32, 579085), (40, 463268), (52, 356360), (59, 314080), (65, 285088), (80, 231634), (104, 178180), (118, 157040), (130, 142544), (151, 122720), (160, 115817), (208, 89090), (236, 78520), (260, 71272), (295, 62816), (302, 61360), (416, 44545), (472, 39260), (520, 35636), (590, 31408), (604, 30680), (755, 24544), (767, 24160), (944, 19630), (1040, 17818), (1180, 15704), (1208, 15340), (1510, 12272), (1534, 12080), (1888, 9815), (1963, 9440), (2080, 8909), (2360, 7852), (2416, 7670), (3020, 6136), (3068, 6040), (3835, 4832), (3926, 4720)]