54789640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:634

約数の個数: 64

約数和(自身を含む): 131511600

約数和(自身を除く): 76721960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 197, 340, 394, 409, 680, 788, 818, 985, 1576, 1636, 1970, 2045, 3272, 3349, 3940, 4090, 6698, 6953, 7880, 8180, 13396, 13906, 16360, 16745, 26792, 27812, 33490, 34765, 55624, 66980, 69530, 80573, 133960, 139060, 161146, 278120, 322292, 402865, 644584, 805730, 1369741, 1611460, 2739482, 3222920, 5478964, 6848705, 10957928, 13697410, 27394820, 54789640]

約数ペア:

[(1, 54789640), (2, 27394820), (4, 13697410), (5, 10957928), (8, 6848705), (10, 5478964), (17, 3222920), (20, 2739482), (34, 1611460), (40, 1369741), (68, 805730), (85, 644584), (136, 402865), (170, 322292), (197, 278120), (340, 161146), (394, 139060), (409, 133960), (680, 80573), (788, 69530), (818, 66980), (985, 55624), (1576, 34765), (1636, 33490), (1970, 27812), (2045, 26792), (3272, 16745), (3349, 16360), (3940, 13906), (4090, 13396), (6698, 8180), (6953, 7880)]