18795400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7229}}^1$

素因数の和:7258

約数の個数: 48

約数和(自身を含む): 47067300

約数和(自身を除く): 28271900

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7229, 14458, 28916, 36145, 57832, 72290, 93977, 144580, 180725, 187954, 289160, 361450, 375908, 469885, 722900, 751816, 939770, 1445800, 1879540, 2349425, 3759080, 4698850, 9397700, 18795400]

約数ペア:

[(1, 18795400), (2, 9397700), (4, 4698850), (5, 3759080), (8, 2349425), (10, 1879540), (13, 1445800), (20, 939770), (25, 751816), (26, 722900), (40, 469885), (50, 375908), (52, 361450), (65, 289160), (100, 187954), (104, 180725), (130, 144580), (200, 93977), (260, 72290), (325, 57832), (520, 36145), (650, 28916), (1300, 14458), (2600, 7229)]