251010972

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:755

約数の個数: 72

約数和(自身を含む): 647010000

約数和(自身を除く): 395999028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 157, 178, 267, 314, 356, 471, 499, 534, 628, 801, 942, 998, 1068, 1413, 1497, 1602, 1884, 1996, 2826, 2994, 3204, 4491, 5652, 5988, 8982, 13973, 17964, 27946, 41919, 44411, 55892, 78343, 83838, 88822, 125757, 133233, 156686, 167676, 177644, 235029, 251514, 266466, 313372, 399699, 470058, 503028, 532932, 705087, 799398, 940116, 1410174, 1598796, 2820348, 6972527, 13945054, 20917581, 27890108, 41835162, 62752743, 83670324, 125505486, 251010972]

約数ペア:

[(1, 251010972), (2, 125505486), (3, 83670324), (4, 62752743), (6, 41835162), (9, 27890108), (12, 20917581), (18, 13945054), (36, 6972527), (89, 2820348), (157, 1598796), (178, 1410174), (267, 940116), (314, 799398), (356, 705087), (471, 532932), (499, 503028), (534, 470058), (628, 399699), (801, 313372), (942, 266466), (998, 251514), (1068, 235029), (1413, 177644), (1497, 167676), (1602, 156686), (1884, 133233), (1996, 125757), (2826, 88822), (2994, 83838), (3204, 78343), (4491, 55892), (5652, 44411), (5988, 41919), (8982, 27946), (13973, 17964)]