290499720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1447}}^1$

素因数の和:1707

約数の個数: 128

約数和(自身を含む): 1000857600

約数和(自身を除く): 710357880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 239, 280, 420, 478, 717, 840, 956, 1195, 1434, 1447, 1673, 1912, 2390, 2868, 2894, 3346, 3585, 4341, 4780, 5019, 5736, 5788, 6692, 7170, 7235, 8365, 8682, 9560, 10038, 10129, 11576, 13384, 14340, 14470, 16730, 17364, 20076, 20258, 21705, 25095, 28680, 28940, 30387, 33460, 34728, 40152, 40516, 43410, 50190, 50645, 57880, 60774, 66920, 81032, 86820, 100380, 101290, 121548, 151935, 173640, 200760, 202580, 243096, 303870, 345833, 405160, 607740, 691666, 1037499, 1215480, 1383332, 1729165, 2074998, 2420831, 2766664, 3458330, 4149996, 4841662, 5187495, 6916660, 7262493, 8299992, 9683324, 10374990, 12104155, 13833320, 14524986, 19366648, 20749980, 24208310, 29049972, 36312465, 41499960, 48416620, 58099944, 72624930, 96833240, 145249860, 290499720]

約数ペア:

[(1, 290499720), (2, 145249860), (3, 96833240), (4, 72624930), (5, 58099944), (6, 48416620), (7, 41499960), (8, 36312465), (10, 29049972), (12, 24208310), (14, 20749980), (15, 19366648), (20, 14524986), (21, 13833320), (24, 12104155), (28, 10374990), (30, 9683324), (35, 8299992), (40, 7262493), (42, 6916660), (56, 5187495), (60, 4841662), (70, 4149996), (84, 3458330), (105, 2766664), (120, 2420831), (140, 2074998), (168, 1729165), (210, 1383332), (239, 1215480), (280, 1037499), (420, 691666), (478, 607740), (717, 405160), (840, 345833), (956, 303870), (1195, 243096), (1434, 202580), (1447, 200760), (1673, 173640), (1912, 151935), (2390, 121548), (2868, 101290), (2894, 100380), (3346, 86820), (3585, 81032), (4341, 66920), (4780, 60774), (5019, 57880), (5736, 50645), (5788, 50190), (6692, 43410), (7170, 40516), (7235, 40152), (8365, 34728), (8682, 33460), (9560, 30387), (10038, 28940), (10129, 28680), (11576, 25095), (13384, 21705), (14340, 20258), (14470, 20076), (16730, 17364)]