20366480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13399}}^1$

素因数の和:13431

約数の個数: 40

約数和(自身を含む): 49848000

約数和(自身を除く): 29481520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13399, 26798, 53596, 66995, 107192, 133990, 214384, 254581, 267980, 509162, 535960, 1018324, 1071920, 1272905, 2036648, 2545810, 4073296, 5091620, 10183240, 20366480]

約数ペア:

[(1, 20366480), (2, 10183240), (4, 5091620), (5, 4073296), (8, 2545810), (10, 2036648), (16, 1272905), (19, 1071920), (20, 1018324), (38, 535960), (40, 509162), (76, 267980), (80, 254581), (95, 214384), (152, 133990), (190, 107192), (304, 66995), (380, 53596), (760, 26798), (1520, 13399)]