9813680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2011}}^1$

素因数の和:2085

約数の個数: 40

約数和(自身を含む): 23202384

約数和(自身を除く): 13388704

約数列:

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

約数ペア:

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