128671120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39229}}^1$

素因数の和:39283

約数の個数: 40

約数和(自身を含む): 306464760

約数和(自身を除く): 177793640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 39229, 78458, 156916, 196145, 313832, 392290, 627664, 784580, 1569160, 1608389, 3138320, 3216778, 6433556, 8041945, 12867112, 16083890, 25734224, 32167780, 64335560, 128671120]

約数ペア:

[(1, 128671120), (2, 64335560), (4, 32167780), (5, 25734224), (8, 16083890), (10, 12867112), (16, 8041945), (20, 6433556), (40, 3216778), (41, 3138320), (80, 1608389), (82, 1569160), (164, 784580), (205, 627664), (328, 392290), (410, 313832), (656, 196145), (820, 156916), (1640, 78458), (3280, 39229)]