128070520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{569}}^1$

素因数の和:928

約数の個数: 64

約数和(自身を含む): 306568800

約数和(自身を除く): 178498280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 331, 340, 569, 662, 680, 1138, 1324, 1655, 2276, 2648, 2845, 3310, 4552, 5627, 5690, 6620, 9673, 11254, 11380, 13240, 19346, 22508, 22760, 28135, 38692, 45016, 48365, 56270, 77384, 96730, 112540, 188339, 193460, 225080, 376678, 386920, 753356, 941695, 1506712, 1883390, 3201763, 3766780, 6403526, 7533560, 12807052, 16008815, 25614104, 32017630, 64035260, 128070520]

約数ペア:

[(1, 128070520), (2, 64035260), (4, 32017630), (5, 25614104), (8, 16008815), (10, 12807052), (17, 7533560), (20, 6403526), (34, 3766780), (40, 3201763), (68, 1883390), (85, 1506712), (136, 941695), (170, 753356), (331, 386920), (340, 376678), (569, 225080), (662, 193460), (680, 188339), (1138, 112540), (1324, 96730), (1655, 77384), (2276, 56270), (2648, 48365), (2845, 45016), (3310, 38692), (4552, 28135), (5627, 22760), (5690, 22508), (6620, 19346), (9673, 13240), (11254, 11380)]