20662740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1$

素因数の和:99

約数の個数: 216

約数和(自身を含む): 77296128

約数和(自身を除く): 56633388

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 31, 35, 36, 42, 45, 46, 60, 62, 63, 69, 70, 84, 90, 92, 93, 105, 115, 124, 126, 138, 140, 155, 161, 180, 186, 207, 210, 217, 230, 252, 276, 279, 310, 315, 322, 345, 372, 414, 420, 434, 460, 465, 483, 529, 558, 620, 630, 644, 651, 690, 713, 805, 828, 868, 930, 966, 1035, 1058, 1085, 1116, 1260, 1302, 1380, 1395, 1426, 1449, 1587, 1610, 1860, 1932, 1953, 2070, 2116, 2139, 2170, 2415, 2604, 2645, 2790, 2852, 2898, 3174, 3220, 3255, 3565, 3703, 3906, 4140, 4278, 4340, 4761, 4830, 4991, 5290, 5580, 5796, 6348, 6417, 6510, 7130, 7245, 7406, 7812, 7935, 8556, 9522, 9660, 9765, 9982, 10580, 10695, 11109, 12834, 13020, 14260, 14490, 14812, 14973, 15870, 16399, 18515, 19044, 19530, 19964, 21390, 22218, 23805, 24955, 25668, 28980, 29946, 31740, 32085, 32798, 33327, 37030, 39060, 42780, 44436, 44919, 47610, 49197, 49910, 55545, 59892, 64170, 65596, 66654, 74060, 74865, 81995, 89838, 95220, 98394, 99820, 111090, 114793, 128340, 133308, 147591, 149730, 163990, 166635, 179676, 196788, 222180, 224595, 229586, 245985, 295182, 299460, 327980, 333270, 344379, 449190, 459172, 491970, 573965, 590364, 666540, 688758, 737955, 898380, 983940, 1033137, 1147930, 1377516, 1475910, 1721895, 2066274, 2295860, 2951820, 3443790, 4132548, 5165685, 6887580, 10331370, 20662740]

約数ペア:

[(1, 20662740), (2, 10331370), (3, 6887580), (4, 5165685), (5, 4132548), (6, 3443790), (7, 2951820), (9, 2295860), (10, 2066274), (12, 1721895), (14, 1475910), (15, 1377516), (18, 1147930), (20, 1033137), (21, 983940), (23, 898380), (28, 737955), (30, 688758), (31, 666540), (35, 590364), (36, 573965), (42, 491970), (45, 459172), (46, 449190), (60, 344379), (62, 333270), (63, 327980), (69, 299460), (70, 295182), (84, 245985), (90, 229586), (92, 224595), (93, 222180), (105, 196788), (115, 179676), (124, 166635), (126, 163990), (138, 149730), (140, 147591), (155, 133308), (161, 128340), (180, 114793), (186, 111090), (207, 99820), (210, 98394), (217, 95220), (230, 89838), (252, 81995), (276, 74865), (279, 74060), (310, 66654), (315, 65596), (322, 64170), (345, 59892), (372, 55545), (414, 49910), (420, 49197), (434, 47610), (460, 44919), (465, 44436), (483, 42780), (529, 39060), (558, 37030), (620, 33327), (630, 32798), (644, 32085), (651, 31740), (690, 29946), (713, 28980), (805, 25668), (828, 24955), (868, 23805), (930, 22218), (966, 21390), (1035, 19964), (1058, 19530), (1085, 19044), (1116, 18515), (1260, 16399), (1302, 15870), (1380, 14973), (1395, 14812), (1426, 14490), (1449, 14260), (1587, 13020), (1610, 12834), (1860, 11109), (1932, 10695), (1953, 10580), (2070, 9982), (2116, 9765), (2139, 9660), (2170, 9522), (2415, 8556), (2604, 7935), (2645, 7812), (2790, 7406), (2852, 7245), (2898, 7130), (3174, 6510), (3220, 6417), (3255, 6348), (3565, 5796), (3703, 5580), (3906, 5290), (4140, 4991), (4278, 4830), (4340, 4761)]