213478960

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{29983}}^1$

素因数の和:30085

約数の個数: 40

約数和(自身を含む): 501932160

約数和(自身を除く): 288453200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 29983, 59966, 119932, 149915, 239864, 299830, 479728, 599660, 1199320, 2398640, 2668487, 5336974, 10673948, 13342435, 21347896, 26684870, 42695792, 53369740, 106739480, 213478960]

約数ペア:

[(1, 213478960), (2, 106739480), (4, 53369740), (5, 42695792), (8, 26684870), (10, 21347896), (16, 13342435), (20, 10673948), (40, 5336974), (80, 2668487), (89, 2398640), (178, 1199320), (356, 599660), (445, 479728), (712, 299830), (890, 239864), (1424, 149915), (1780, 119932), (3560, 59966), (7120, 29983)]