21755760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1$

素因数の和:415

約数の個数: 160

約数和(自身を含む): 76661760

約数和(自身を除く): 54906000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 24, 26, 30, 38, 39, 40, 48, 52, 57, 60, 65, 76, 78, 80, 95, 104, 114, 120, 130, 152, 156, 190, 195, 208, 228, 240, 247, 260, 285, 304, 312, 367, 380, 390, 456, 494, 520, 570, 624, 734, 741, 760, 780, 912, 988, 1040, 1101, 1140, 1235, 1468, 1482, 1520, 1560, 1835, 1976, 2202, 2280, 2470, 2936, 2964, 3120, 3670, 3705, 3952, 4404, 4560, 4771, 4940, 5505, 5872, 5928, 6973, 7340, 7410, 8808, 9542, 9880, 11010, 11856, 13946, 14313, 14680, 14820, 17616, 19084, 19760, 20919, 22020, 23855, 27892, 28626, 29360, 29640, 34865, 38168, 41838, 44040, 47710, 55784, 57252, 59280, 69730, 71565, 76336, 83676, 88080, 90649, 95420, 104595, 111568, 114504, 139460, 143130, 167352, 181298, 190840, 209190, 229008, 271947, 278920, 286260, 334704, 362596, 381680, 418380, 453245, 543894, 557840, 572520, 725192, 836760, 906490, 1087788, 1145040, 1359735, 1450384, 1673520, 1812980, 2175576, 2719470, 3625960, 4351152, 5438940, 7251920, 10877880, 21755760]

約数ペア:

[(1, 21755760), (2, 10877880), (3, 7251920), (4, 5438940), (5, 4351152), (6, 3625960), (8, 2719470), (10, 2175576), (12, 1812980), (13, 1673520), (15, 1450384), (16, 1359735), (19, 1145040), (20, 1087788), (24, 906490), (26, 836760), (30, 725192), (38, 572520), (39, 557840), (40, 543894), (48, 453245), (52, 418380), (57, 381680), (60, 362596), (65, 334704), (76, 286260), (78, 278920), (80, 271947), (95, 229008), (104, 209190), (114, 190840), (120, 181298), (130, 167352), (152, 143130), (156, 139460), (190, 114504), (195, 111568), (208, 104595), (228, 95420), (240, 90649), (247, 88080), (260, 83676), (285, 76336), (304, 71565), (312, 69730), (367, 59280), (380, 57252), (390, 55784), (456, 47710), (494, 44040), (520, 41838), (570, 38168), (624, 34865), (734, 29640), (741, 29360), (760, 28626), (780, 27892), (912, 23855), (988, 22020), (1040, 20919), (1101, 19760), (1140, 19084), (1235, 17616), (1468, 14820), (1482, 14680), (1520, 14313), (1560, 13946), (1835, 11856), (1976, 11010), (2202, 9880), (2280, 9542), (2470, 8808), (2936, 7410), (2964, 7340), (3120, 6973), (3670, 5928), (3705, 5872), (3952, 5505), (4404, 4940), (4560, 4771)]