989560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 2630880

約数和(自身を除く): 1641320

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 173, 220, 260, 286, 346, 440, 520, 572, 692, 715, 865, 1144, 1384, 1430, 1730, 1903, 2249, 2860, 3460, 3806, 4498, 5720, 6920, 7612, 8996, 9515, 11245, 15224, 17992, 19030, 22490, 24739, 38060, 44980, 49478, 76120, 89960, 98956, 123695, 197912, 247390, 494780, 989560]

約数ペア:

[(1, 989560), (2, 494780), (4, 247390), (5, 197912), (8, 123695), (10, 98956), (11, 89960), (13, 76120), (20, 49478), (22, 44980), (26, 38060), (40, 24739), (44, 22490), (52, 19030), (55, 17992), (65, 15224), (88, 11245), (104, 9515), (110, 8996), (130, 7612), (143, 6920), (173, 5720), (220, 4498), (260, 3806), (286, 3460), (346, 2860), (440, 2249), (520, 1903), (572, 1730), (692, 1430), (715, 1384), (865, 1144)]