17889625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:238

約数の個数: 32

約数和(自身を含む): 24504480

約数和(自身を除く): 6614855

約数列:

[1, 5, 13, 25, 65, 101, 109, 125, 325, 505, 545, 1313, 1417, 1625, 2525, 2725, 6565, 7085, 11009, 12625, 13625, 32825, 35425, 55045, 143117, 164125, 177125, 275225, 715585, 1376125, 3577925, 17889625]

約数ペア:

[(1, 17889625), (5, 3577925), (13, 1376125), (25, 715585), (65, 275225), (101, 177125), (109, 164125), (125, 143117), (325, 55045), (505, 35425), (545, 32825), (1313, 13625), (1417, 12625), (1625, 11009), (2525, 7085), (2725, 6565)]