20177388

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 45866772

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 29, 33, 36, 42, 44, 58, 63, 66, 77, 84, 87, 99, 116, 126, 132, 154, 174, 198, 203, 231, 251, 252, 261, 308, 319, 348, 396, 406, 462, 502, 522, 609, 638, 693, 753, 812, 924, 957, 1004, 1044, 1218, 1276, 1386, 1506, 1757, 1827, 1914, 2233, 2259, 2436, 2761, 2772, 2871, 3012, 3514, 3654, 3828, 4466, 4518, 5271, 5522, 5742, 6699, 7028, 7279, 7308, 8283, 8932, 9036, 10542, 11044, 11484, 13398, 14558, 15813, 16566, 19327, 20097, 21084, 21837, 24849, 26796, 29116, 31626, 33132, 38654, 40194, 43674, 49698, 50953, 57981, 63252, 65511, 77308, 80069, 80388, 87348, 99396, 101906, 115962, 131022, 152859, 160138, 173943, 203812, 231924, 240207, 262044, 305718, 320276, 347886, 458577, 480414, 560483, 611436, 695772, 720621, 917154, 960828, 1120966, 1441242, 1681449, 1834308, 2241932, 2882484, 3362898, 5044347, 6725796, 10088694, 20177388]

約数ペア:

[(1, 20177388), (2, 10088694), (3, 6725796), (4, 5044347), (6, 3362898), (7, 2882484), (9, 2241932), (11, 1834308), (12, 1681449), (14, 1441242), (18, 1120966), (21, 960828), (22, 917154), (28, 720621), (29, 695772), (33, 611436), (36, 560483), (42, 480414), (44, 458577), (58, 347886), (63, 320276), (66, 305718), (77, 262044), (84, 240207), (87, 231924), (99, 203812), (116, 173943), (126, 160138), (132, 152859), (154, 131022), (174, 115962), (198, 101906), (203, 99396), (231, 87348), (251, 80388), (252, 80069), (261, 77308), (308, 65511), (319, 63252), (348, 57981), (396, 50953), (406, 49698), (462, 43674), (502, 40194), (522, 38654), (609, 33132), (638, 31626), (693, 29116), (753, 26796), (812, 24849), (924, 21837), (957, 21084), (1004, 20097), (1044, 19327), (1218, 16566), (1276, 15813), (1386, 14558), (1506, 13398), (1757, 11484), (1827, 11044), (1914, 10542), (2233, 9036), (2259, 8932), (2436, 8283), (2761, 7308), (2772, 7279), (2871, 7028), (3012, 6699), (3514, 5742), (3654, 5522), (3828, 5271), (4466, 4518)]