28213250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{8681}}^1$

素因数の和:8711

約数の個数: 32

約数和(自身を含む): 56884464

約数和(自身を除く): 28671214

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 8681, 17362, 43405, 86810, 112853, 217025, 225706, 434050, 564265, 1085125, 1128530, 2170250, 2821325, 5642650, 14106625, 28213250]

約数ペア:

[(1, 28213250), (2, 14106625), (5, 5642650), (10, 2821325), (13, 2170250), (25, 1128530), (26, 1085125), (50, 564265), (65, 434050), (125, 225706), (130, 217025), (250, 112853), (325, 86810), (650, 43405), (1625, 17362), (3250, 8681)]