740221720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{797}}^1$

素因数の和:953

約数の個数: 128

約数和(自身を含む): 1985679360

約数和(自身を除く): 1245457640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 107, 124, 140, 155, 214, 217, 248, 280, 310, 428, 434, 535, 620, 749, 797, 856, 868, 1070, 1085, 1240, 1498, 1594, 1736, 2140, 2170, 2996, 3188, 3317, 3745, 3985, 4280, 4340, 5579, 5992, 6376, 6634, 7490, 7970, 8680, 11158, 13268, 14980, 15940, 16585, 22316, 23219, 24707, 26536, 27895, 29960, 31880, 33170, 44632, 46438, 49414, 55790, 66340, 85279, 92876, 98828, 111580, 116095, 123535, 132680, 170558, 172949, 185752, 197656, 223160, 232190, 247070, 341116, 345898, 426395, 464380, 494140, 596953, 682232, 691796, 852790, 864745, 928760, 988280, 1193906, 1383592, 1705580, 1729490, 2387812, 2643649, 2984765, 3411160, 3458980, 4775624, 5287298, 5969530, 6917960, 10574596, 11939060, 13218245, 18505543, 21149192, 23878120, 26436490, 37011086, 52872980, 74022172, 92527715, 105745960, 148044344, 185055430, 370110860, 740221720]

約数ペア:

[(1, 740221720), (2, 370110860), (4, 185055430), (5, 148044344), (7, 105745960), (8, 92527715), (10, 74022172), (14, 52872980), (20, 37011086), (28, 26436490), (31, 23878120), (35, 21149192), (40, 18505543), (56, 13218245), (62, 11939060), (70, 10574596), (107, 6917960), (124, 5969530), (140, 5287298), (155, 4775624), (214, 3458980), (217, 3411160), (248, 2984765), (280, 2643649), (310, 2387812), (428, 1729490), (434, 1705580), (535, 1383592), (620, 1193906), (749, 988280), (797, 928760), (856, 864745), (868, 852790), (1070, 691796), (1085, 682232), (1240, 596953), (1498, 494140), (1594, 464380), (1736, 426395), (2140, 345898), (2170, 341116), (2996, 247070), (3188, 232190), (3317, 223160), (3745, 197656), (3985, 185752), (4280, 172949), (4340, 170558), (5579, 132680), (5992, 123535), (6376, 116095), (6634, 111580), (7490, 98828), (7970, 92876), (8680, 85279), (11158, 66340), (13268, 55790), (14980, 49414), (15940, 46438), (16585, 44632), (22316, 33170), (23219, 31880), (24707, 29960), (26536, 27895)]