521640

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{23}}^1$

素因数の和:53

約数の個数: 160

約数和(自身を含む): 2090880

約数和(自身を除く): 1569240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 27, 28, 30, 35, 36, 40, 42, 45, 46, 54, 56, 60, 63, 69, 70, 72, 81, 84, 90, 92, 105, 108, 115, 120, 126, 135, 138, 140, 161, 162, 168, 180, 184, 189, 207, 210, 216, 230, 252, 270, 276, 280, 315, 322, 324, 345, 360, 378, 405, 414, 420, 460, 483, 504, 540, 552, 567, 621, 630, 644, 648, 690, 756, 805, 810, 828, 840, 920, 945, 966, 1035, 1080, 1134, 1242, 1260, 1288, 1380, 1449, 1512, 1610, 1620, 1656, 1863, 1890, 1932, 2070, 2268, 2415, 2484, 2520, 2760, 2835, 2898, 3105, 3220, 3240, 3726, 3780, 3864, 4140, 4347, 4536, 4830, 4968, 5670, 5796, 6210, 6440, 7245, 7452, 7560, 8280, 8694, 9315, 9660, 11340, 11592, 12420, 13041, 14490, 14904, 17388, 18630, 19320, 21735, 22680, 24840, 26082, 28980, 34776, 37260, 43470, 52164, 57960, 65205, 74520, 86940, 104328, 130410, 173880, 260820, 521640]

約数ペア:

[(1, 521640), (2, 260820), (3, 173880), (4, 130410), (5, 104328), (6, 86940), (7, 74520), (8, 65205), (9, 57960), (10, 52164), (12, 43470), (14, 37260), (15, 34776), (18, 28980), (20, 26082), (21, 24840), (23, 22680), (24, 21735), (27, 19320), (28, 18630), (30, 17388), (35, 14904), (36, 14490), (40, 13041), (42, 12420), (45, 11592), (46, 11340), (54, 9660), (56, 9315), (60, 8694), (63, 8280), (69, 7560), (70, 7452), (72, 7245), (81, 6440), (84, 6210), (90, 5796), (92, 5670), (105, 4968), (108, 4830), (115, 4536), (120, 4347), (126, 4140), (135, 3864), (138, 3780), (140, 3726), (161, 3240), (162, 3220), (168, 3105), (180, 2898), (184, 2835), (189, 2760), (207, 2520), (210, 2484), (216, 2415), (230, 2268), (252, 2070), (270, 1932), (276, 1890), (280, 1863), (315, 1656), (322, 1620), (324, 1610), (345, 1512), (360, 1449), (378, 1380), (405, 1288), (414, 1260), (420, 1242), (460, 1134), (483, 1080), (504, 1035), (540, 966), (552, 945), (567, 920), (621, 840), (630, 828), (644, 810), (648, 805), (690, 756)]