28920250

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{3989}}^1$

素因数の和:4035

約数の個数: 32

約数和(自身を含む): 56019600

約数和(自身を除く): 27099350

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 125, 145, 250, 290, 725, 1450, 3625, 3989, 7250, 7978, 19945, 39890, 99725, 115681, 199450, 231362, 498625, 578405, 997250, 1156810, 2892025, 5784050, 14460125, 28920250]

約数ペア:

[(1, 28920250), (2, 14460125), (5, 5784050), (10, 2892025), (25, 1156810), (29, 997250), (50, 578405), (58, 498625), (125, 231362), (145, 199450), (250, 115681), (290, 99725), (725, 39890), (1450, 19945), (3625, 7978), (3989, 7250)]