201520400

素因数分解:

$2^4\times 5^2\times {\mathrm{59}}^1\times {\mathrm{8539}}^1$

素因数の和:8616

約数の個数: 60

約数和(自身を含む): 492416400

約数和(自身を除く): 290896000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 59, 80, 100, 118, 200, 236, 295, 400, 472, 590, 944, 1180, 1475, 2360, 2950, 4720, 5900, 8539, 11800, 17078, 23600, 34156, 42695, 68312, 85390, 136624, 170780, 213475, 341560, 426950, 503801, 683120, 853900, 1007602, 1707800, 2015204, 2519005, 3415600, 4030408, 5038010, 8060816, 10076020, 12595025, 20152040, 25190050, 40304080, 50380100, 100760200, 201520400]

約数ペア:

[(1, 201520400), (2, 100760200), (4, 50380100), (5, 40304080), (8, 25190050), (10, 20152040), (16, 12595025), (20, 10076020), (25, 8060816), (40, 5038010), (50, 4030408), (59, 3415600), (80, 2519005), (100, 2015204), (118, 1707800), (200, 1007602), (236, 853900), (295, 683120), (400, 503801), (472, 426950), (590, 341560), (944, 213475), (1180, 170780), (1475, 136624), (2360, 85390), (2950, 68312), (4720, 42695), (5900, 34156), (8539, 23600), (11800, 17078)]