20786040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 192

約数和(自身を含む): 76658400

約数和(自身を除く): 55872360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 29, 30, 33, 36, 40, 44, 45, 55, 58, 60, 66, 72, 87, 88, 90, 99, 110, 116, 120, 132, 145, 165, 174, 180, 181, 198, 220, 232, 261, 264, 290, 319, 330, 348, 360, 362, 396, 435, 440, 495, 522, 543, 580, 638, 660, 696, 724, 792, 870, 905, 957, 990, 1044, 1086, 1160, 1276, 1305, 1320, 1448, 1595, 1629, 1740, 1810, 1914, 1980, 1991, 2088, 2172, 2552, 2610, 2715, 2871, 3190, 3258, 3480, 3620, 3828, 3960, 3982, 4344, 4785, 5220, 5249, 5430, 5742, 5973, 6380, 6516, 7240, 7656, 7964, 8145, 9570, 9955, 10440, 10498, 10860, 11484, 11946, 12760, 13032, 14355, 15747, 15928, 16290, 17919, 19140, 19910, 20996, 21720, 22968, 23892, 26245, 28710, 29865, 31494, 32580, 35838, 38280, 39820, 41992, 47241, 47784, 52490, 57420, 57739, 59730, 62988, 65160, 71676, 78735, 79640, 89595, 94482, 104980, 114840, 115478, 119460, 125976, 143352, 157470, 173217, 179190, 188964, 209960, 230956, 236205, 238920, 288695, 314940, 346434, 358380, 377928, 461912, 472410, 519651, 577390, 629880, 692868, 716760, 866085, 944820, 1039302, 1154780, 1385736, 1732170, 1889640, 2078604, 2309560, 2598255, 3464340, 4157208, 5196510, 6928680, 10393020, 20786040]

約数ペア:

[(1, 20786040), (2, 10393020), (3, 6928680), (4, 5196510), (5, 4157208), (6, 3464340), (8, 2598255), (9, 2309560), (10, 2078604), (11, 1889640), (12, 1732170), (15, 1385736), (18, 1154780), (20, 1039302), (22, 944820), (24, 866085), (29, 716760), (30, 692868), (33, 629880), (36, 577390), (40, 519651), (44, 472410), (45, 461912), (55, 377928), (58, 358380), (60, 346434), (66, 314940), (72, 288695), (87, 238920), (88, 236205), (90, 230956), (99, 209960), (110, 188964), (116, 179190), (120, 173217), (132, 157470), (145, 143352), (165, 125976), (174, 119460), (180, 115478), (181, 114840), (198, 104980), (220, 94482), (232, 89595), (261, 79640), (264, 78735), (290, 71676), (319, 65160), (330, 62988), (348, 59730), (360, 57739), (362, 57420), (396, 52490), (435, 47784), (440, 47241), (495, 41992), (522, 39820), (543, 38280), (580, 35838), (638, 32580), (660, 31494), (696, 29865), (724, 28710), (792, 26245), (870, 23892), (905, 22968), (957, 21720), (990, 20996), (1044, 19910), (1086, 19140), (1160, 17919), (1276, 16290), (1305, 15928), (1320, 15747), (1448, 14355), (1595, 13032), (1629, 12760), (1740, 11946), (1810, 11484), (1914, 10860), (1980, 10498), (1991, 10440), (2088, 9955), (2172, 9570), (2552, 8145), (2610, 7964), (2715, 7656), (2871, 7240), (3190, 6516), (3258, 6380), (3480, 5973), (3620, 5742), (3828, 5430), (3960, 5249), (3982, 5220), (4344, 4785)]