61691240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 159667200

約数和(自身を除く): 97975960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 43, 52, 62, 65, 86, 89, 104, 124, 130, 155, 172, 178, 215, 248, 260, 310, 344, 356, 403, 430, 445, 520, 559, 620, 712, 806, 860, 890, 1118, 1157, 1240, 1333, 1612, 1720, 1780, 2015, 2236, 2314, 2666, 2759, 2795, 3224, 3560, 3827, 4030, 4472, 4628, 5332, 5518, 5590, 5785, 6665, 7654, 8060, 9256, 10664, 11036, 11180, 11570, 13330, 13795, 15308, 16120, 17329, 19135, 22072, 22360, 23140, 26660, 27590, 30616, 34658, 35867, 38270, 46280, 49751, 53320, 55180, 69316, 71734, 76540, 86645, 99502, 110360, 118637, 138632, 143468, 153080, 173290, 179335, 199004, 237274, 248755, 286936, 346580, 358670, 398008, 474548, 497510, 593185, 693160, 717340, 949096, 995020, 1186370, 1434680, 1542281, 1990040, 2372740, 3084562, 4745480, 6169124, 7711405, 12338248, 15422810, 30845620, 61691240]

約数ペア:

[(1, 61691240), (2, 30845620), (4, 15422810), (5, 12338248), (8, 7711405), (10, 6169124), (13, 4745480), (20, 3084562), (26, 2372740), (31, 1990040), (40, 1542281), (43, 1434680), (52, 1186370), (62, 995020), (65, 949096), (86, 717340), (89, 693160), (104, 593185), (124, 497510), (130, 474548), (155, 398008), (172, 358670), (178, 346580), (215, 286936), (248, 248755), (260, 237274), (310, 199004), (344, 179335), (356, 173290), (403, 153080), (430, 143468), (445, 138632), (520, 118637), (559, 110360), (620, 99502), (712, 86645), (806, 76540), (860, 71734), (890, 69316), (1118, 55180), (1157, 53320), (1240, 49751), (1333, 46280), (1612, 38270), (1720, 35867), (1780, 34658), (2015, 30616), (2236, 27590), (2314, 26660), (2666, 23140), (2759, 22360), (2795, 22072), (3224, 19135), (3560, 17329), (3827, 16120), (4030, 15308), (4472, 13795), (4628, 13330), (5332, 11570), (5518, 11180), (5590, 11036), (5785, 10664), (6665, 9256), (7654, 8060)]