82815700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{953}}^1$

素因数の和:1057

約数の個数: 72

約数和(自身を含む): 198737280

約数和(自身を除く): 115921580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 79, 100, 110, 158, 220, 275, 316, 395, 550, 790, 869, 953, 1100, 1580, 1738, 1906, 1975, 3476, 3812, 3950, 4345, 4765, 7900, 8690, 9530, 10483, 17380, 19060, 20966, 21725, 23825, 41932, 43450, 47650, 52415, 75287, 86900, 95300, 104830, 150574, 209660, 262075, 301148, 376435, 524150, 752870, 828157, 1048300, 1505740, 1656314, 1882175, 3312628, 3764350, 4140785, 7528700, 8281570, 16563140, 20703925, 41407850, 82815700]

約数ペア:

[(1, 82815700), (2, 41407850), (4, 20703925), (5, 16563140), (10, 8281570), (11, 7528700), (20, 4140785), (22, 3764350), (25, 3312628), (44, 1882175), (50, 1656314), (55, 1505740), (79, 1048300), (100, 828157), (110, 752870), (158, 524150), (220, 376435), (275, 301148), (316, 262075), (395, 209660), (550, 150574), (790, 104830), (869, 95300), (953, 86900), (1100, 75287), (1580, 52415), (1738, 47650), (1906, 43450), (1975, 41932), (3476, 23825), (3812, 21725), (3950, 20966), (4345, 19060), (4765, 17380), (7900, 10483), (8690, 9530)]