1981601010

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:758

約数の個数: 160

約数和(自身を含む): 5640148800

約数和(自身を除く): 3658547790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 81, 90, 95, 114, 135, 162, 171, 190, 270, 285, 331, 342, 389, 405, 513, 570, 662, 778, 810, 855, 993, 1026, 1167, 1539, 1655, 1710, 1945, 1986, 2334, 2565, 2979, 3078, 3310, 3501, 3890, 4965, 5130, 5835, 5958, 6289, 7002, 7391, 7695, 8937, 9930, 10503, 11670, 12578, 14782, 14895, 15390, 17505, 17874, 18867, 21006, 22173, 26811, 29790, 31445, 31509, 35010, 36955, 37734, 44346, 44685, 52515, 53622, 56601, 62890, 63018, 66519, 73910, 89370, 94335, 105030, 110865, 113202, 128759, 133038, 134055, 157545, 169803, 188670, 199557, 221730, 257518, 268110, 283005, 315090, 332595, 339606, 386277, 399114, 509409, 566010, 598671, 643795, 665190, 772554, 849015, 997785, 1018818, 1158831, 1197342, 1287590, 1698030, 1931385, 1995570, 2317662, 2446421, 2547045, 2993355, 3476493, 3862770, 4892842, 5094090, 5794155, 5986710, 6952986, 7339263, 10429479, 11588310, 12232105, 14678526, 17382465, 20858958, 22017789, 24464210, 34764930, 36696315, 44035578, 52147395, 66053367, 73392630, 104294790, 110088945, 132106734, 198160101, 220177890, 330266835, 396320202, 660533670, 990800505, 1981601010]

約数ペア:

[(1, 1981601010), (2, 990800505), (3, 660533670), (5, 396320202), (6, 330266835), (9, 220177890), (10, 198160101), (15, 132106734), (18, 110088945), (19, 104294790), (27, 73392630), (30, 66053367), (38, 52147395), (45, 44035578), (54, 36696315), (57, 34764930), (81, 24464210), (90, 22017789), (95, 20858958), (114, 17382465), (135, 14678526), (162, 12232105), (171, 11588310), (190, 10429479), (270, 7339263), (285, 6952986), (331, 5986710), (342, 5794155), (389, 5094090), (405, 4892842), (513, 3862770), (570, 3476493), (662, 2993355), (778, 2547045), (810, 2446421), (855, 2317662), (993, 1995570), (1026, 1931385), (1167, 1698030), (1539, 1287590), (1655, 1197342), (1710, 1158831), (1945, 1018818), (1986, 997785), (2334, 849015), (2565, 772554), (2979, 665190), (3078, 643795), (3310, 598671), (3501, 566010), (3890, 509409), (4965, 399114), (5130, 386277), (5835, 339606), (5958, 332595), (6289, 315090), (7002, 283005), (7391, 268110), (7695, 257518), (8937, 221730), (9930, 199557), (10503, 188670), (11670, 169803), (12578, 157545), (14782, 134055), (14895, 133038), (15390, 128759), (17505, 113202), (17874, 110865), (18867, 105030), (21006, 94335), (22173, 89370), (26811, 73910), (29790, 66519), (31445, 63018), (31509, 62890), (35010, 56601), (36955, 53622), (37734, 52515), (44346, 44685)]