201921725

素因数分解:

$5^2\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{379}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 254730720

約数和(自身を除く): 52808995

約数列:

[1, 5, 25, 101, 211, 379, 505, 1055, 1895, 2525, 5275, 9475, 21311, 38279, 79969, 106555, 191395, 399845, 532775, 956975, 1999225, 8076869, 40384345, 201921725]

約数ペア:

[(1, 201921725), (5, 40384345), (25, 8076869), (101, 1999225), (211, 956975), (379, 532775), (505, 399845), (1055, 191395), (1895, 106555), (2525, 79969), (5275, 38279), (9475, 21311)]