28221120

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:303

約数の個数: 168

約数和(自身を含む): 99852480

約数和(自身を除く): 71631360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 64, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 192, 205, 239, 240, 246, 288, 320, 328, 360, 369, 410, 478, 480, 492, 576, 615, 656, 717, 720, 738, 820, 956, 960, 984, 1195, 1230, 1312, 1434, 1440, 1476, 1640, 1845, 1912, 1968, 2151, 2390, 2460, 2624, 2868, 2880, 2952, 3280, 3585, 3690, 3824, 3936, 4302, 4780, 4920, 5736, 5904, 6560, 7170, 7380, 7648, 7872, 8604, 9560, 9799, 9840, 10755, 11472, 11808, 13120, 14340, 14760, 15296, 17208, 19120, 19598, 19680, 21510, 22944, 23616, 28680, 29397, 29520, 34416, 38240, 39196, 39360, 43020, 45888, 48995, 57360, 58794, 59040, 68832, 76480, 78392, 86040, 88191, 97990, 114720, 117588, 118080, 137664, 146985, 156784, 172080, 176382, 195980, 229440, 235176, 293970, 313568, 344160, 352764, 391960, 440955, 470352, 587940, 627136, 688320, 705528, 783920, 881910, 940704, 1175880, 1411056, 1567840, 1763820, 1881408, 2351760, 2822112, 3135680, 3527640, 4703520, 5644224, 7055280, 9407040, 14110560, 28221120]

約数ペア:

[(1, 28221120), (2, 14110560), (3, 9407040), (4, 7055280), (5, 5644224), (6, 4703520), (8, 3527640), (9, 3135680), (10, 2822112), (12, 2351760), (15, 1881408), (16, 1763820), (18, 1567840), (20, 1411056), (24, 1175880), (30, 940704), (32, 881910), (36, 783920), (40, 705528), (41, 688320), (45, 627136), (48, 587940), (60, 470352), (64, 440955), (72, 391960), (80, 352764), (82, 344160), (90, 313568), (96, 293970), (120, 235176), (123, 229440), (144, 195980), (160, 176382), (164, 172080), (180, 156784), (192, 146985), (205, 137664), (239, 118080), (240, 117588), (246, 114720), (288, 97990), (320, 88191), (328, 86040), (360, 78392), (369, 76480), (410, 68832), (478, 59040), (480, 58794), (492, 57360), (576, 48995), (615, 45888), (656, 43020), (717, 39360), (720, 39196), (738, 38240), (820, 34416), (956, 29520), (960, 29397), (984, 28680), (1195, 23616), (1230, 22944), (1312, 21510), (1434, 19680), (1440, 19598), (1476, 19120), (1640, 17208), (1845, 15296), (1912, 14760), (1968, 14340), (2151, 13120), (2390, 11808), (2460, 11472), (2624, 10755), (2868, 9840), (2880, 9799), (2952, 9560), (3280, 8604), (3585, 7872), (3690, 7648), (3824, 7380), (3936, 7170), (4302, 6560), (4780, 5904), (4920, 5736)]