2019828040

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1\times {\mathrm{479}}^1$

素因数の和:1150

約数の個数: 64

約数和(自身を含む): 4582656000

約数和(自身を除く): 2562827960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 389, 479, 542, 778, 958, 1084, 1355, 1556, 1916, 1945, 2168, 2395, 2710, 3112, 3832, 3890, 4790, 5420, 7780, 9580, 10840, 15560, 19160, 105419, 129809, 186331, 210838, 259618, 372662, 421676, 519236, 527095, 649045, 745324, 843352, 931655, 1038472, 1054190, 1298090, 1490648, 1863310, 2108380, 2596180, 3726620, 4216760, 5192360, 7453240, 50495701, 100991402, 201982804, 252478505, 403965608, 504957010, 1009914020, 2019828040]

約数ペア:

[(1, 2019828040), (2, 1009914020), (4, 504957010), (5, 403965608), (8, 252478505), (10, 201982804), (20, 100991402), (40, 50495701), (271, 7453240), (389, 5192360), (479, 4216760), (542, 3726620), (778, 2596180), (958, 2108380), (1084, 1863310), (1355, 1490648), (1556, 1298090), (1916, 1054190), (1945, 1038472), (2168, 931655), (2395, 843352), (2710, 745324), (3112, 649045), (3832, 527095), (3890, 519236), (4790, 421676), (5420, 372662), (7780, 259618), (9580, 210838), (10840, 186331), (15560, 129809), (19160, 105419)]