51271920

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{3391}}^1$

素因数の和:3420

約数の個数: 160

約数和(自身を含む): 201891840

約数和(自身を除く): 150619920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3391, 3780, 5040, 6782, 7560, 10173, 13564, 15120, 16955, 20346, 23737, 27128, 30519, 33910, 40692, 47474, 50865, 54256, 61038, 67820, 71211, 81384, 91557, 94948, 101730, 118685, 122076, 135640, 142422, 152595, 162768, 183114, 189896, 203460, 213633, 237370, 244152, 271280, 284844, 305190, 356055, 366228, 379792, 406920, 427266, 457785, 474740, 488304, 569688, 610380, 640899, 712110, 732456, 813840, 854532, 915570, 949480, 1068165, 1139376, 1220760, 1281798, 1424220, 1464912, 1709064, 1831140, 1898960, 2136330, 2441520, 2563596, 2848440, 3204495, 3418128, 3662280, 4272660, 5127192, 5696880, 6408990, 7324560, 8545320, 10254384, 12817980, 17090640, 25635960, 51271920]

約数ペア:

[(1, 51271920), (2, 25635960), (3, 17090640), (4, 12817980), (5, 10254384), (6, 8545320), (7, 7324560), (8, 6408990), (9, 5696880), (10, 5127192), (12, 4272660), (14, 3662280), (15, 3418128), (16, 3204495), (18, 2848440), (20, 2563596), (21, 2441520), (24, 2136330), (27, 1898960), (28, 1831140), (30, 1709064), (35, 1464912), (36, 1424220), (40, 1281798), (42, 1220760), (45, 1139376), (48, 1068165), (54, 949480), (56, 915570), (60, 854532), (63, 813840), (70, 732456), (72, 712110), (80, 640899), (84, 610380), (90, 569688), (105, 488304), (108, 474740), (112, 457785), (120, 427266), (126, 406920), (135, 379792), (140, 366228), (144, 356055), (168, 305190), (180, 284844), (189, 271280), (210, 244152), (216, 237370), (240, 213633), (252, 203460), (270, 189896), (280, 183114), (315, 162768), (336, 152595), (360, 142422), (378, 135640), (420, 122076), (432, 118685), (504, 101730), (540, 94948), (560, 91557), (630, 81384), (720, 71211), (756, 67820), (840, 61038), (945, 54256), (1008, 50865), (1080, 47474), (1260, 40692), (1512, 33910), (1680, 30519), (1890, 27128), (2160, 23737), (2520, 20346), (3024, 16955), (3391, 15120), (3780, 13564), (5040, 10173), (6782, 7560)]