19627360

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2011}}^1$

素因数の和:2087

約数の個数: 48

約数和(自身を含む): 47153232

約数和(自身を除く): 27525872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2011, 2440, 4022, 4880, 8044, 9760, 10055, 16088, 20110, 32176, 40220, 64352, 80440, 122671, 160880, 245342, 321760, 490684, 613355, 981368, 1226710, 1962736, 2453420, 3925472, 4906840, 9813680, 19627360]

約数ペア:

[(1, 19627360), (2, 9813680), (4, 4906840), (5, 3925472), (8, 2453420), (10, 1962736), (16, 1226710), (20, 981368), (32, 613355), (40, 490684), (61, 321760), (80, 245342), (122, 160880), (160, 122671), (244, 80440), (305, 64352), (488, 40220), (610, 32176), (976, 20110), (1220, 16088), (1952, 10055), (2011, 9760), (2440, 8044), (4022, 4880)]