28582840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:317

約数の個数: 128

約数和(自身を含む): 79833600

約数和(自身を除く): 51250760

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 88, 95, 104, 110, 130, 143, 152, 190, 209, 220, 247, 260, 263, 286, 380, 418, 440, 494, 520, 526, 572, 715, 760, 836, 988, 1045, 1052, 1144, 1235, 1315, 1430, 1672, 1976, 2090, 2104, 2470, 2630, 2717, 2860, 2893, 3419, 4180, 4940, 4997, 5260, 5434, 5720, 5786, 6838, 8360, 9880, 9994, 10520, 10868, 11572, 13585, 13676, 14465, 17095, 19988, 21736, 23144, 24985, 27170, 27352, 28930, 34190, 37609, 39976, 49970, 54340, 54967, 57860, 64961, 68380, 75218, 99940, 108680, 109934, 115720, 129922, 136760, 150436, 188045, 199880, 219868, 259844, 274835, 300872, 324805, 376090, 439736, 519688, 549670, 649610, 714571, 752180, 1099340, 1299220, 1429142, 1504360, 2198680, 2598440, 2858284, 3572855, 5716568, 7145710, 14291420, 28582840]

約数ペア:

[(1, 28582840), (2, 14291420), (4, 7145710), (5, 5716568), (8, 3572855), (10, 2858284), (11, 2598440), (13, 2198680), (19, 1504360), (20, 1429142), (22, 1299220), (26, 1099340), (38, 752180), (40, 714571), (44, 649610), (52, 549670), (55, 519688), (65, 439736), (76, 376090), (88, 324805), (95, 300872), (104, 274835), (110, 259844), (130, 219868), (143, 199880), (152, 188045), (190, 150436), (209, 136760), (220, 129922), (247, 115720), (260, 109934), (263, 108680), (286, 99940), (380, 75218), (418, 68380), (440, 64961), (494, 57860), (520, 54967), (526, 54340), (572, 49970), (715, 39976), (760, 37609), (836, 34190), (988, 28930), (1045, 27352), (1052, 27170), (1144, 24985), (1235, 23144), (1315, 21736), (1430, 19988), (1672, 17095), (1976, 14465), (2090, 13676), (2104, 13585), (2470, 11572), (2630, 10868), (2717, 10520), (2860, 9994), (2893, 9880), (3419, 8360), (4180, 6838), (4940, 5786), (4997, 5720), (5260, 5434)]