2021108440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{487}}^1$

素因数の和:881

約数の個数: 128

約数和(自身を含む): 5135477760

約数和(自身を除く): 3114369320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 347, 460, 487, 520, 598, 694, 920, 974, 1196, 1388, 1495, 1735, 1948, 2392, 2435, 2776, 2990, 3470, 3896, 4511, 4870, 5980, 6331, 6940, 7981, 9022, 9740, 11201, 11960, 12662, 13880, 15962, 18044, 19480, 22402, 22555, 25324, 31655, 31924, 36088, 39905, 44804, 45110, 50648, 56005, 63310, 63848, 79810, 89608, 90220, 103753, 112010, 126620, 145613, 159620, 168989, 180440, 207506, 224020, 253240, 291226, 319240, 337978, 415012, 448040, 518765, 582452, 675956, 728065, 830024, 844945, 1037530, 1164904, 1351912, 1456130, 1689890, 2075060, 2196857, 2912260, 3379780, 3886747, 4150120, 4393714, 5824520, 6759560, 7773494, 8787428, 10984285, 15546988, 17574856, 19433735, 21968570, 31093976, 38867470, 43937140, 50527711, 77734940, 87874280, 101055422, 155469880, 202110844, 252638555, 404221688, 505277110, 1010554220, 2021108440]

約数ペア:

[(1, 2021108440), (2, 1010554220), (4, 505277110), (5, 404221688), (8, 252638555), (10, 202110844), (13, 155469880), (20, 101055422), (23, 87874280), (26, 77734940), (40, 50527711), (46, 43937140), (52, 38867470), (65, 31093976), (92, 21968570), (104, 19433735), (115, 17574856), (130, 15546988), (184, 10984285), (230, 8787428), (260, 7773494), (299, 6759560), (347, 5824520), (460, 4393714), (487, 4150120), (520, 3886747), (598, 3379780), (694, 2912260), (920, 2196857), (974, 2075060), (1196, 1689890), (1388, 1456130), (1495, 1351912), (1735, 1164904), (1948, 1037530), (2392, 844945), (2435, 830024), (2776, 728065), (2990, 675956), (3470, 582452), (3896, 518765), (4511, 448040), (4870, 415012), (5980, 337978), (6331, 319240), (6940, 291226), (7981, 253240), (9022, 224020), (9740, 207506), (11201, 180440), (11960, 168989), (12662, 159620), (13880, 145613), (15962, 126620), (18044, 112010), (19480, 103753), (22402, 90220), (22555, 89608), (25324, 79810), (31655, 63848), (31924, 63310), (36088, 56005), (39905, 50648), (44804, 45110)]