81484740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{859}}^1$

素因数の和:922

約数の個数: 144

約数和(自身を含む): 270466560

約数和(自身を除く): 188981820

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, 859, 930, 1020, 1054, 1116, 1395, 1530, 1581, 1718, 1860, 2108, 2577, 2635, 2790, 3060, 3162, 3436, 4295, 4743, 5154, 5270, 5580, 6324, 7731, 7905, 8590, 9486, 10308, 10540, 12885, 14603, 15462, 15810, 17180, 18972, 23715, 25770, 26629, 29206, 30924, 31620, 38655, 43809, 47430, 51540, 53258, 58412, 73015, 77310, 79887, 87618, 94860, 106516, 131427, 133145, 146030, 154620, 159774, 175236, 219045, 239661, 262854, 266290, 292060, 319548, 399435, 438090, 452693, 479322, 525708, 532580, 657135, 798870, 876180, 905386, 958644, 1198305, 1314270, 1358079, 1597740, 1810772, 2263465, 2396610, 2628540, 2716158, 4074237, 4526930, 4793220, 5432316, 6790395, 8148474, 9053860, 13580790, 16296948, 20371185, 27161580, 40742370, 81484740]

約数ペア:

[(1, 81484740), (2, 40742370), (3, 27161580), (4, 20371185), (5, 16296948), (6, 13580790), (9, 9053860), (10, 8148474), (12, 6790395), (15, 5432316), (17, 4793220), (18, 4526930), (20, 4074237), (30, 2716158), (31, 2628540), (34, 2396610), (36, 2263465), (45, 1810772), (51, 1597740), (60, 1358079), (62, 1314270), (68, 1198305), (85, 958644), (90, 905386), (93, 876180), (102, 798870), (124, 657135), (153, 532580), (155, 525708), (170, 479322), (180, 452693), (186, 438090), (204, 399435), (255, 319548), (279, 292060), (306, 266290), (310, 262854), (340, 239661), (372, 219045), (465, 175236), (510, 159774), (527, 154620), (558, 146030), (612, 133145), (620, 131427), (765, 106516), (859, 94860), (930, 87618), (1020, 79887), (1054, 77310), (1116, 73015), (1395, 58412), (1530, 53258), (1581, 51540), (1718, 47430), (1860, 43809), (2108, 38655), (2577, 31620), (2635, 30924), (2790, 29206), (3060, 26629), (3162, 25770), (3436, 23715), (4295, 18972), (4743, 17180), (5154, 15810), (5270, 15462), (5580, 14603), (6324, 12885), (7731, 10540), (7905, 10308), (8590, 9486)]