1630480

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:331

約数の個数: 40

約数和(自身を含む): 3850200

約数和(自身を除く): 2219720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 229, 356, 445, 458, 712, 890, 916, 1145, 1424, 1780, 1832, 2290, 3560, 3664, 4580, 7120, 9160, 18320, 20381, 40762, 81524, 101905, 163048, 203810, 326096, 407620, 815240, 1630480]

約数ペア:

[(1, 1630480), (2, 815240), (4, 407620), (5, 326096), (8, 203810), (10, 163048), (16, 101905), (20, 81524), (40, 40762), (80, 20381), (89, 18320), (178, 9160), (229, 7120), (356, 4580), (445, 3664), (458, 3560), (712, 2290), (890, 1832), (916, 1780), (1145, 1424)]