64842160

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4073}}^1$

素因数の和:4285

約数の個数: 40

約数和(自身を含む): 151552800

約数和(自身を除く): 86710640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 4073, 7960, 8146, 15920, 16292, 20365, 32584, 40730, 65168, 81460, 162920, 325840, 810527, 1621054, 3242108, 4052635, 6484216, 8105270, 12968432, 16210540, 32421080, 64842160]

約数ペア:

[(1, 64842160), (2, 32421080), (4, 16210540), (5, 12968432), (8, 8105270), (10, 6484216), (16, 4052635), (20, 3242108), (40, 1621054), (80, 810527), (199, 325840), (398, 162920), (796, 81460), (995, 65168), (1592, 40730), (1990, 32584), (3184, 20365), (3980, 16292), (4073, 15920), (7960, 8146)]