18601520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{563}}^1$

素因数の和:642

約数の個数: 80

約数和(自身を含む): 50353920

約数和(自身を除く): 31752400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 59, 70, 80, 112, 118, 140, 236, 280, 295, 413, 472, 560, 563, 590, 826, 944, 1126, 1180, 1652, 2065, 2252, 2360, 2815, 3304, 3941, 4130, 4504, 4720, 5630, 6608, 7882, 8260, 9008, 11260, 15764, 16520, 19705, 22520, 31528, 33040, 33217, 39410, 45040, 63056, 66434, 78820, 132868, 157640, 166085, 232519, 265736, 315280, 332170, 465038, 531472, 664340, 930076, 1162595, 1328680, 1860152, 2325190, 2657360, 3720304, 4650380, 9300760, 18601520]

約数ペア:

[(1, 18601520), (2, 9300760), (4, 4650380), (5, 3720304), (7, 2657360), (8, 2325190), (10, 1860152), (14, 1328680), (16, 1162595), (20, 930076), (28, 664340), (35, 531472), (40, 465038), (56, 332170), (59, 315280), (70, 265736), (80, 232519), (112, 166085), (118, 157640), (140, 132868), (236, 78820), (280, 66434), (295, 63056), (413, 45040), (472, 39410), (560, 33217), (563, 33040), (590, 31528), (826, 22520), (944, 19705), (1126, 16520), (1180, 15764), (1652, 11260), (2065, 9008), (2252, 8260), (2360, 7882), (2815, 6608), (3304, 5630), (3941, 4720), (4130, 4504)]