20053750

素因数分解:

$2^1\times 5^4\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:346

約数の個数: 40

約数和(自身を含む): 38350224

約数和(自身を除く): 18296474

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 125, 250, 263, 305, 526, 610, 625, 1250, 1315, 1525, 2630, 3050, 6575, 7625, 13150, 15250, 16043, 32086, 32875, 38125, 65750, 76250, 80215, 160430, 164375, 328750, 401075, 802150, 2005375, 4010750, 10026875, 20053750]

約数ペア:

[(1, 20053750), (2, 10026875), (5, 4010750), (10, 2005375), (25, 802150), (50, 401075), (61, 328750), (122, 164375), (125, 160430), (250, 80215), (263, 76250), (305, 65750), (526, 38125), (610, 32875), (625, 32086), (1250, 16043), (1315, 15250), (1525, 13150), (2630, 7625), (3050, 6575)]