1257380820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{881}}^2$

素因数の和:1783

約数の個数: 90

約数和(自身を含む): 3948932526

約数和(自身を除く): 2691551706

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 881, 1620, 1762, 2643, 3524, 4405, 5286, 7929, 8810, 10572, 13215, 15858, 17620, 23787, 26430, 31716, 39645, 47574, 52860, 71361, 79290, 95148, 118935, 142722, 158580, 237870, 285444, 356805, 475740, 713610, 776161, 1427220, 1552322, 2328483, 3104644, 3880805, 4656966, 6985449, 7761610, 9313932, 11642415, 13970898, 15523220, 20956347, 23284830, 27941796, 34927245, 41912694, 46569660, 62869041, 69854490, 83825388, 104781735, 125738082, 139708980, 209563470, 251476164, 314345205, 419126940, 628690410, 1257380820]

約数ペア:

[(1, 1257380820), (2, 628690410), (3, 419126940), (4, 314345205), (5, 251476164), (6, 209563470), (9, 139708980), (10, 125738082), (12, 104781735), (15, 83825388), (18, 69854490), (20, 62869041), (27, 46569660), (30, 41912694), (36, 34927245), (45, 27941796), (54, 23284830), (60, 20956347), (81, 15523220), (90, 13970898), (108, 11642415), (135, 9313932), (162, 7761610), (180, 6985449), (270, 4656966), (324, 3880805), (405, 3104644), (540, 2328483), (810, 1552322), (881, 1427220), (1620, 776161), (1762, 713610), (2643, 475740), (3524, 356805), (4405, 285444), (5286, 237870), (7929, 158580), (8810, 142722), (10572, 118935), (13215, 95148), (15858, 79290), (17620, 71361), (23787, 52860), (26430, 47574), (31716, 39645)]