81730040

素因数分解:

$2^3\times 5^1\times 7^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:99

約数の個数: 160

約数和(自身を含む): 229906080

約数和(自身を除く): 148176040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 37, 40, 46, 49, 56, 70, 74, 92, 98, 115, 140, 148, 161, 184, 185, 196, 230, 245, 259, 280, 296, 322, 343, 370, 392, 460, 490, 518, 644, 686, 740, 805, 851, 920, 980, 1036, 1127, 1288, 1295, 1372, 1480, 1610, 1702, 1715, 1813, 1960, 2072, 2254, 2401, 2590, 2744, 3220, 3404, 3430, 3626, 4255, 4508, 4802, 5180, 5635, 5957, 6440, 6808, 6860, 7252, 7889, 8510, 9016, 9065, 9604, 10360, 11270, 11914, 12005, 12691, 13720, 14504, 15778, 17020, 18130, 19208, 22540, 23828, 24010, 25382, 29785, 31556, 34040, 36260, 39445, 41699, 45080, 47656, 48020, 50764, 55223, 59570, 63112, 63455, 72520, 78890, 83398, 88837, 96040, 101528, 110446, 119140, 126910, 157780, 166796, 177674, 208495, 220892, 238280, 253820, 276115, 291893, 315560, 333592, 355348, 416990, 441784, 444185, 507640, 552230, 583786, 710696, 833980, 888370, 1104460, 1167572, 1459465, 1667960, 1776740, 2043251, 2208920, 2335144, 2918930, 3553480, 4086502, 5837860, 8173004, 10216255, 11675720, 16346008, 20432510, 40865020, 81730040]

約数ペア:

[(1, 81730040), (2, 40865020), (4, 20432510), (5, 16346008), (7, 11675720), (8, 10216255), (10, 8173004), (14, 5837860), (20, 4086502), (23, 3553480), (28, 2918930), (35, 2335144), (37, 2208920), (40, 2043251), (46, 1776740), (49, 1667960), (56, 1459465), (70, 1167572), (74, 1104460), (92, 888370), (98, 833980), (115, 710696), (140, 583786), (148, 552230), (161, 507640), (184, 444185), (185, 441784), (196, 416990), (230, 355348), (245, 333592), (259, 315560), (280, 291893), (296, 276115), (322, 253820), (343, 238280), (370, 220892), (392, 208495), (460, 177674), (490, 166796), (518, 157780), (644, 126910), (686, 119140), (740, 110446), (805, 101528), (851, 96040), (920, 88837), (980, 83398), (1036, 78890), (1127, 72520), (1288, 63455), (1295, 63112), (1372, 59570), (1480, 55223), (1610, 50764), (1702, 48020), (1715, 47656), (1813, 45080), (1960, 41699), (2072, 39445), (2254, 36260), (2401, 34040), (2590, 31556), (2744, 29785), (3220, 25382), (3404, 24010), (3430, 23828), (3626, 22540), (4255, 19208), (4508, 18130), (4802, 17020), (5180, 15778), (5635, 14504), (5957, 13720), (6440, 12691), (6808, 12005), (6860, 11914), (7252, 11270), (7889, 10360), (8510, 9604), (9016, 9065)]