721691640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{83}}^2\times {\mathrm{97}}^1$

素因数の和:283

約数の個数: 192

約数和(自身を含む): 2460074400

約数和(自身を除く): 1738382760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 83, 90, 97, 108, 120, 135, 166, 180, 194, 216, 249, 270, 291, 332, 360, 388, 415, 485, 498, 540, 582, 664, 747, 776, 830, 873, 970, 996, 1080, 1164, 1245, 1455, 1494, 1660, 1746, 1940, 1992, 2241, 2328, 2490, 2619, 2910, 2988, 3320, 3492, 3735, 3880, 4365, 4482, 4980, 5238, 5820, 5976, 6889, 6984, 7470, 8051, 8730, 8964, 9960, 10476, 11205, 11640, 13095, 13778, 14940, 16102, 17460, 17928, 20667, 20952, 22410, 24153, 26190, 27556, 29880, 32204, 34445, 34920, 40255, 41334, 44820, 48306, 52380, 55112, 62001, 64408, 68890, 72459, 80510, 82668, 89640, 96612, 103335, 104760, 120765, 124002, 137780, 144918, 161020, 165336, 186003, 193224, 206670, 217377, 241530, 248004, 275560, 289836, 310005, 322040, 362295, 372006, 413340, 434754, 483060, 496008, 579672, 620010, 668233, 724590, 744012, 826680, 869508, 930015, 966120, 1086885, 1240020, 1336466, 1449180, 1488024, 1739016, 1860030, 2004699, 2173770, 2480040, 2672932, 2898360, 3341165, 3720060, 4009398, 4347540, 5345864, 6014097, 6682330, 7440120, 8018796, 8695080, 10023495, 12028194, 13364660, 16037592, 18042291, 20046990, 24056388, 26729320, 30070485, 36084582, 40093980, 48112776, 60140970, 72169164, 80187960, 90211455, 120281940, 144338328, 180422910, 240563880, 360845820, 721691640]

約数ペア:

[(1, 721691640), (2, 360845820), (3, 240563880), (4, 180422910), (5, 144338328), (6, 120281940), (8, 90211455), (9, 80187960), (10, 72169164), (12, 60140970), (15, 48112776), (18, 40093980), (20, 36084582), (24, 30070485), (27, 26729320), (30, 24056388), (36, 20046990), (40, 18042291), (45, 16037592), (54, 13364660), (60, 12028194), (72, 10023495), (83, 8695080), (90, 8018796), (97, 7440120), (108, 6682330), (120, 6014097), (135, 5345864), (166, 4347540), (180, 4009398), (194, 3720060), (216, 3341165), (249, 2898360), (270, 2672932), (291, 2480040), (332, 2173770), (360, 2004699), (388, 1860030), (415, 1739016), (485, 1488024), (498, 1449180), (540, 1336466), (582, 1240020), (664, 1086885), (747, 966120), (776, 930015), (830, 869508), (873, 826680), (970, 744012), (996, 724590), (1080, 668233), (1164, 620010), (1245, 579672), (1455, 496008), (1494, 483060), (1660, 434754), (1746, 413340), (1940, 372006), (1992, 362295), (2241, 322040), (2328, 310005), (2490, 289836), (2619, 275560), (2910, 248004), (2988, 241530), (3320, 217377), (3492, 206670), (3735, 193224), (3880, 186003), (4365, 165336), (4482, 161020), (4980, 144918), (5238, 137780), (5820, 124002), (5976, 120765), (6889, 104760), (6984, 103335), (7470, 96612), (8051, 89640), (8730, 82668), (8964, 80510), (9960, 72459), (10476, 68890), (11205, 64408), (11640, 62001), (13095, 55112), (13778, 52380), (14940, 48306), (16102, 44820), (17460, 41334), (17928, 40255), (20667, 34920), (20952, 34445), (22410, 32204), (24153, 29880), (26190, 27556)]