20138608625

素因数分解:

$5^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{37199}}^1$

素因数の和:37346

約数の個数: 32

約数和(自身を含む): 25905484800

約数和(自身を除く): 5766876175

約数列:

[1, 5, 25, 61, 71, 125, 305, 355, 1525, 1775, 4331, 7625, 8875, 21655, 37199, 108275, 185995, 541375, 929975, 2269139, 2641129, 4649875, 11345695, 13205645, 56728475, 66028225, 161108869, 283642375, 330141125, 805544345, 4027721725, 20138608625]

約数ペア:

[(1, 20138608625), (5, 4027721725), (25, 805544345), (61, 330141125), (71, 283642375), (125, 161108869), (305, 66028225), (355, 56728475), (1525, 13205645), (1775, 11345695), (4331, 4649875), (7625, 2641129), (8875, 2269139), (21655, 929975), (37199, 541375), (108275, 185995)]