20849040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1259}}^1$

素因数の和:1301

約数の個数: 120

約数和(自身を含む): 73120320

約数和(自身を除く): 52271280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1259, 1380, 1656, 1840, 2070, 2518, 2760, 3312, 3777, 4140, 5036, 5520, 6295, 7554, 8280, 10072, 11331, 12590, 15108, 16560, 18885, 20144, 22662, 25180, 28957, 30216, 37770, 45324, 50360, 56655, 57914, 60432, 75540, 86871, 90648, 100720, 113310, 115828, 144785, 151080, 173742, 181296, 226620, 231656, 260613, 289570, 302160, 347484, 434355, 453240, 463312, 521226, 579140, 694968, 868710, 906480, 1042452, 1158280, 1303065, 1389936, 1737420, 2084904, 2316560, 2606130, 3474840, 4169808, 5212260, 6949680, 10424520, 20849040]

約数ペア:

[(1, 20849040), (2, 10424520), (3, 6949680), (4, 5212260), (5, 4169808), (6, 3474840), (8, 2606130), (9, 2316560), (10, 2084904), (12, 1737420), (15, 1389936), (16, 1303065), (18, 1158280), (20, 1042452), (23, 906480), (24, 868710), (30, 694968), (36, 579140), (40, 521226), (45, 463312), (46, 453240), (48, 434355), (60, 347484), (69, 302160), (72, 289570), (80, 260613), (90, 231656), (92, 226620), (115, 181296), (120, 173742), (138, 151080), (144, 144785), (180, 115828), (184, 113310), (207, 100720), (230, 90648), (240, 86871), (276, 75540), (345, 60432), (360, 57914), (368, 56655), (414, 50360), (460, 45324), (552, 37770), (690, 30216), (720, 28957), (828, 25180), (920, 22662), (1035, 20144), (1104, 18885), (1259, 16560), (1380, 15108), (1656, 12590), (1840, 11331), (2070, 10072), (2518, 8280), (2760, 7554), (3312, 6295), (3777, 5520), (4140, 5036)]