1640287560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{7727}}^1$

素因数の和:7831

約数の個数: 128

約数和(自身を含む): 5174668800

約数和(自身を除く): 3534381240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 61, 87, 116, 120, 122, 145, 174, 183, 232, 244, 290, 305, 348, 366, 435, 488, 580, 610, 696, 732, 870, 915, 1160, 1220, 1464, 1740, 1769, 1830, 2440, 3480, 3538, 3660, 5307, 7076, 7320, 7727, 8845, 10614, 14152, 15454, 17690, 21228, 23181, 26535, 30908, 35380, 38635, 42456, 46362, 53070, 61816, 70760, 77270, 92724, 106140, 115905, 154540, 185448, 212280, 224083, 231810, 309080, 448166, 463620, 471347, 672249, 896332, 927240, 942694, 1120415, 1344498, 1414041, 1792664, 1885388, 2240830, 2356735, 2688996, 2828082, 3361245, 3770776, 4481660, 4713470, 5377992, 5656164, 6722490, 7070205, 8963320, 9426940, 11312328, 13444980, 13669063, 14140410, 18853880, 26889960, 27338126, 28280820, 41007189, 54676252, 56561640, 68345315, 82014378, 109352504, 136690630, 164028756, 205035945, 273381260, 328057512, 410071890, 546762520, 820143780, 1640287560]

約数ペア:

[(1, 1640287560), (2, 820143780), (3, 546762520), (4, 410071890), (5, 328057512), (6, 273381260), (8, 205035945), (10, 164028756), (12, 136690630), (15, 109352504), (20, 82014378), (24, 68345315), (29, 56561640), (30, 54676252), (40, 41007189), (58, 28280820), (60, 27338126), (61, 26889960), (87, 18853880), (116, 14140410), (120, 13669063), (122, 13444980), (145, 11312328), (174, 9426940), (183, 8963320), (232, 7070205), (244, 6722490), (290, 5656164), (305, 5377992), (348, 4713470), (366, 4481660), (435, 3770776), (488, 3361245), (580, 2828082), (610, 2688996), (696, 2356735), (732, 2240830), (870, 1885388), (915, 1792664), (1160, 1414041), (1220, 1344498), (1464, 1120415), (1740, 942694), (1769, 927240), (1830, 896332), (2440, 672249), (3480, 471347), (3538, 463620), (3660, 448166), (5307, 309080), (7076, 231810), (7320, 224083), (7727, 212280), (8845, 185448), (10614, 154540), (14152, 115905), (15454, 106140), (17690, 92724), (21228, 77270), (23181, 70760), (26535, 61816), (30908, 53070), (35380, 46362), (38635, 42456)]