81328250

素因数分解:

$2^1\times 5^3\times {\mathrm{61}}^1\times {\mathrm{5333}}^1$

素因数の和:5411

約数の個数: 32

約数和(自身を含む): 154771344

約数和(自身を除く): 73443094

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 125, 250, 305, 610, 1525, 3050, 5333, 7625, 10666, 15250, 26665, 53330, 133325, 266650, 325313, 650626, 666625, 1333250, 1626565, 3253130, 8132825, 16265650, 40664125, 81328250]

約数ペア:

[(1, 81328250), (2, 40664125), (5, 16265650), (10, 8132825), (25, 3253130), (50, 1626565), (61, 1333250), (122, 666625), (125, 650626), (250, 325313), (305, 266650), (610, 133325), (1525, 53330), (3050, 26665), (5333, 15250), (7625, 10666)]