30657280

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:621

約数の個数: 72

約数和(自身を含む): 75276432

約数和(自身を除く): 44619152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 557, 640, 688, 860, 1114, 1280, 1376, 1720, 2228, 2752, 2785, 3440, 4456, 5504, 5570, 6880, 8912, 11008, 11140, 13760, 17824, 22280, 23951, 27520, 35648, 44560, 47902, 55040, 71296, 89120, 95804, 119755, 142592, 178240, 191608, 239510, 356480, 383216, 479020, 712960, 766432, 958040, 1532864, 1916080, 3065728, 3832160, 6131456, 7664320, 15328640, 30657280]

約数ペア:

[(1, 30657280), (2, 15328640), (4, 7664320), (5, 6131456), (8, 3832160), (10, 3065728), (16, 1916080), (20, 1532864), (32, 958040), (40, 766432), (43, 712960), (64, 479020), (80, 383216), (86, 356480), (128, 239510), (160, 191608), (172, 178240), (215, 142592), (256, 119755), (320, 95804), (344, 89120), (430, 71296), (557, 55040), (640, 47902), (688, 44560), (860, 35648), (1114, 27520), (1280, 23951), (1376, 22280), (1720, 17824), (2228, 13760), (2752, 11140), (2785, 11008), (3440, 8912), (4456, 6880), (5504, 5570)]