261502920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2531}}^1$

素因数の和:2596

約数の個数: 192

約数和(自身を含む): 995379840

約数和(自身を除く): 733876920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 56, 60, 63, 70, 72, 82, 84, 90, 105, 120, 123, 126, 140, 164, 168, 180, 205, 210, 246, 252, 280, 287, 315, 328, 360, 369, 410, 420, 492, 504, 574, 615, 630, 738, 820, 840, 861, 984, 1148, 1230, 1260, 1435, 1476, 1640, 1722, 1845, 2296, 2460, 2520, 2531, 2583, 2870, 2952, 3444, 3690, 4305, 4920, 5062, 5166, 5740, 6888, 7380, 7593, 8610, 10124, 10332, 11480, 12655, 12915, 14760, 15186, 17220, 17717, 20248, 20664, 22779, 25310, 25830, 30372, 34440, 35434, 37965, 45558, 50620, 51660, 53151, 60744, 70868, 75930, 88585, 91116, 101240, 103320, 103771, 106302, 113895, 141736, 151860, 159453, 177170, 182232, 207542, 212604, 227790, 265755, 303720, 311313, 318906, 354340, 415084, 425208, 455580, 518855, 531510, 622626, 637812, 708680, 726397, 797265, 830168, 911160, 933939, 1037710, 1063020, 1245252, 1275624, 1452794, 1556565, 1594530, 1867878, 2075420, 2126040, 2179191, 2490504, 2905588, 3113130, 3189060, 3631985, 3735756, 4150840, 4358382, 4669695, 5811176, 6226260, 6378120, 6537573, 7263970, 7471512, 8716764, 9339390, 10895955, 12452520, 13075146, 14527940, 17433528, 18678780, 21791910, 26150292, 29055880, 32687865, 37357560, 43583820, 52300584, 65375730, 87167640, 130751460, 261502920]

約数ペア:

[(1, 261502920), (2, 130751460), (3, 87167640), (4, 65375730), (5, 52300584), (6, 43583820), (7, 37357560), (8, 32687865), (9, 29055880), (10, 26150292), (12, 21791910), (14, 18678780), (15, 17433528), (18, 14527940), (20, 13075146), (21, 12452520), (24, 10895955), (28, 9339390), (30, 8716764), (35, 7471512), (36, 7263970), (40, 6537573), (41, 6378120), (42, 6226260), (45, 5811176), (56, 4669695), (60, 4358382), (63, 4150840), (70, 3735756), (72, 3631985), (82, 3189060), (84, 3113130), (90, 2905588), (105, 2490504), (120, 2179191), (123, 2126040), (126, 2075420), (140, 1867878), (164, 1594530), (168, 1556565), (180, 1452794), (205, 1275624), (210, 1245252), (246, 1063020), (252, 1037710), (280, 933939), (287, 911160), (315, 830168), (328, 797265), (360, 726397), (369, 708680), (410, 637812), (420, 622626), (492, 531510), (504, 518855), (574, 455580), (615, 425208), (630, 415084), (738, 354340), (820, 318906), (840, 311313), (861, 303720), (984, 265755), (1148, 227790), (1230, 212604), (1260, 207542), (1435, 182232), (1476, 177170), (1640, 159453), (1722, 151860), (1845, 141736), (2296, 113895), (2460, 106302), (2520, 103771), (2531, 103320), (2583, 101240), (2870, 91116), (2952, 88585), (3444, 75930), (3690, 70868), (4305, 60744), (4920, 53151), (5062, 51660), (5166, 50620), (5740, 45558), (6888, 37965), (7380, 35434), (7593, 34440), (8610, 30372), (10124, 25830), (10332, 25310), (11480, 22779), (12655, 20664), (12915, 20248), (14760, 17717), (15186, 17220)]