154917340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 330976800

約数和(自身を除く): 176059460

約数列:

[1, 2, 4, 5, 10, 20, 109, 179, 218, 358, 397, 436, 545, 716, 794, 895, 1090, 1588, 1790, 1985, 2180, 3580, 3970, 7940, 19511, 39022, 43273, 71063, 78044, 86546, 97555, 142126, 173092, 195110, 216365, 284252, 355315, 390220, 432730, 710630, 865460, 1421260, 7745867, 15491734, 30983468, 38729335, 77458670, 154917340]

約数ペア:

[(1, 154917340), (2, 77458670), (4, 38729335), (5, 30983468), (10, 15491734), (20, 7745867), (109, 1421260), (179, 865460), (218, 710630), (358, 432730), (397, 390220), (436, 355315), (545, 284252), (716, 216365), (794, 195110), (895, 173092), (1090, 142126), (1588, 97555), (1790, 86546), (1985, 78044), (2180, 71063), (3580, 43273), (3970, 39022), (7940, 19511)]