30845620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 96

約数和(自身を含む): 74511360

約数和(自身を除く): 43665740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 43, 52, 62, 65, 86, 89, 124, 130, 155, 172, 178, 215, 260, 310, 356, 403, 430, 445, 559, 620, 806, 860, 890, 1118, 1157, 1333, 1612, 1780, 2015, 2236, 2314, 2666, 2759, 2795, 3827, 4030, 4628, 5332, 5518, 5590, 5785, 6665, 7654, 8060, 11036, 11180, 11570, 13330, 13795, 15308, 17329, 19135, 23140, 26660, 27590, 34658, 35867, 38270, 49751, 55180, 69316, 71734, 76540, 86645, 99502, 118637, 143468, 173290, 179335, 199004, 237274, 248755, 346580, 358670, 474548, 497510, 593185, 717340, 995020, 1186370, 1542281, 2372740, 3084562, 6169124, 7711405, 15422810, 30845620]

約数ペア:

[(1, 30845620), (2, 15422810), (4, 7711405), (5, 6169124), (10, 3084562), (13, 2372740), (20, 1542281), (26, 1186370), (31, 995020), (43, 717340), (52, 593185), (62, 497510), (65, 474548), (86, 358670), (89, 346580), (124, 248755), (130, 237274), (155, 199004), (172, 179335), (178, 173290), (215, 143468), (260, 118637), (310, 99502), (356, 86645), (403, 76540), (430, 71734), (445, 69316), (559, 55180), (620, 49751), (806, 38270), (860, 35867), (890, 34658), (1118, 27590), (1157, 26660), (1333, 23140), (1612, 19135), (1780, 17329), (2015, 15308), (2236, 13795), (2314, 13330), (2666, 11570), (2759, 11180), (2795, 11036), (3827, 8060), (4030, 7654), (4628, 6665), (5332, 5785), (5518, 5590)]