77571680

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 144

約数和(自身を含む): 207385920

約数和(自身を除く): 129814240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 68, 76, 79, 80, 85, 95, 136, 152, 158, 160, 170, 190, 272, 304, 316, 323, 340, 361, 380, 395, 544, 608, 632, 646, 680, 722, 760, 790, 1264, 1292, 1343, 1360, 1444, 1501, 1520, 1580, 1615, 1805, 2528, 2584, 2686, 2720, 2888, 3002, 3040, 3160, 3230, 3610, 5168, 5372, 5776, 6004, 6137, 6320, 6460, 6715, 7220, 7505, 10336, 10744, 11552, 12008, 12274, 12640, 12920, 13430, 14440, 15010, 21488, 24016, 24548, 25517, 25840, 26860, 28519, 28880, 30020, 30685, 42976, 48032, 49096, 51034, 51680, 53720, 57038, 57760, 60040, 61370, 98192, 102068, 107440, 114076, 120080, 122740, 127585, 142595, 196384, 204136, 214880, 228152, 240160, 245480, 255170, 285190, 408272, 456304, 484823, 490960, 510340, 570380, 816544, 912608, 969646, 981920, 1020680, 1140760, 1939292, 2041360, 2281520, 2424115, 3878584, 4082720, 4563040, 4848230, 7757168, 9696460, 15514336, 19392920, 38785840, 77571680]

約数ペア:

[(1, 77571680), (2, 38785840), (4, 19392920), (5, 15514336), (8, 9696460), (10, 7757168), (16, 4848230), (17, 4563040), (19, 4082720), (20, 3878584), (32, 2424115), (34, 2281520), (38, 2041360), (40, 1939292), (68, 1140760), (76, 1020680), (79, 981920), (80, 969646), (85, 912608), (95, 816544), (136, 570380), (152, 510340), (158, 490960), (160, 484823), (170, 456304), (190, 408272), (272, 285190), (304, 255170), (316, 245480), (323, 240160), (340, 228152), (361, 214880), (380, 204136), (395, 196384), (544, 142595), (608, 127585), (632, 122740), (646, 120080), (680, 114076), (722, 107440), (760, 102068), (790, 98192), (1264, 61370), (1292, 60040), (1343, 57760), (1360, 57038), (1444, 53720), (1501, 51680), (1520, 51034), (1580, 49096), (1615, 48032), (1805, 42976), (2528, 30685), (2584, 30020), (2686, 28880), (2720, 28519), (2888, 26860), (3002, 25840), (3040, 25517), (3160, 24548), (3230, 24016), (3610, 21488), (5168, 15010), (5372, 14440), (5776, 13430), (6004, 12920), (6137, 12640), (6320, 12274), (6460, 12008), (6715, 11552), (7220, 10744), (7505, 10336)]