247489740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2609}}^1$

素因数の和:2672

約数の個数: 144

約数和(自身を含む): 820834560

約数和(自身を除く): 573344820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 45, 51, 60, 62, 68, 85, 90, 93, 102, 124, 153, 155, 170, 180, 186, 204, 255, 279, 306, 310, 340, 372, 465, 510, 527, 558, 612, 620, 765, 930, 1020, 1054, 1116, 1395, 1530, 1581, 1860, 2108, 2609, 2635, 2790, 3060, 3162, 4743, 5218, 5270, 5580, 6324, 7827, 7905, 9486, 10436, 10540, 13045, 15654, 15810, 18972, 23481, 23715, 26090, 31308, 31620, 39135, 44353, 46962, 47430, 52180, 78270, 80879, 88706, 93924, 94860, 117405, 133059, 156540, 161758, 177412, 221765, 234810, 242637, 266118, 323516, 399177, 404395, 443530, 469620, 485274, 532236, 665295, 727911, 798354, 808790, 887060, 970548, 1213185, 1330590, 1374943, 1455822, 1596708, 1617580, 1995885, 2426370, 2661180, 2749886, 2911644, 3639555, 3991770, 4124829, 4852740, 5499772, 6874715, 7279110, 7983540, 8249658, 12374487, 13749430, 14558220, 16499316, 20624145, 24748974, 27498860, 41248290, 49497948, 61872435, 82496580, 123744870, 247489740]

約数ペア:

[(1, 247489740), (2, 123744870), (3, 82496580), (4, 61872435), (5, 49497948), (6, 41248290), (9, 27498860), (10, 24748974), (12, 20624145), (15, 16499316), (17, 14558220), (18, 13749430), (20, 12374487), (30, 8249658), (31, 7983540), (34, 7279110), (36, 6874715), (45, 5499772), (51, 4852740), (60, 4124829), (62, 3991770), (68, 3639555), (85, 2911644), (90, 2749886), (93, 2661180), (102, 2426370), (124, 1995885), (153, 1617580), (155, 1596708), (170, 1455822), (180, 1374943), (186, 1330590), (204, 1213185), (255, 970548), (279, 887060), (306, 808790), (310, 798354), (340, 727911), (372, 665295), (465, 532236), (510, 485274), (527, 469620), (558, 443530), (612, 404395), (620, 399177), (765, 323516), (930, 266118), (1020, 242637), (1054, 234810), (1116, 221765), (1395, 177412), (1530, 161758), (1581, 156540), (1860, 133059), (2108, 117405), (2609, 94860), (2635, 93924), (2790, 88706), (3060, 80879), (3162, 78270), (4743, 52180), (5218, 47430), (5270, 46962), (5580, 44353), (6324, 39135), (7827, 31620), (7905, 31308), (9486, 26090), (10436, 23715), (10540, 23481), (13045, 18972), (15654, 15810)]