51800560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{397}}^1$

素因数の和:650

約数の個数: 80

約数和(自身を含む): 138580416

約数和(自身を除く): 86779856

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 233, 280, 397, 466, 560, 794, 932, 1165, 1588, 1631, 1864, 1985, 2330, 2779, 3176, 3262, 3728, 3970, 4660, 5558, 6352, 6524, 7940, 8155, 9320, 11116, 13048, 13895, 15880, 16310, 18640, 22232, 26096, 27790, 31760, 32620, 44464, 55580, 65240, 92501, 111160, 130480, 185002, 222320, 370004, 462505, 647507, 740008, 925010, 1295014, 1480016, 1850020, 2590028, 3237535, 3700040, 5180056, 6475070, 7400080, 10360112, 12950140, 25900280, 51800560]

約数ペア:

[(1, 51800560), (2, 25900280), (4, 12950140), (5, 10360112), (7, 7400080), (8, 6475070), (10, 5180056), (14, 3700040), (16, 3237535), (20, 2590028), (28, 1850020), (35, 1480016), (40, 1295014), (56, 925010), (70, 740008), (80, 647507), (112, 462505), (140, 370004), (233, 222320), (280, 185002), (397, 130480), (466, 111160), (560, 92501), (794, 65240), (932, 55580), (1165, 44464), (1588, 32620), (1631, 31760), (1864, 27790), (1985, 26096), (2330, 22232), (2779, 18640), (3176, 16310), (3262, 15880), (3728, 13895), (3970, 13048), (4660, 11116), (5558, 9320), (6352, 8155), (6524, 7940)]