261799680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{863}}^1$

素因数の和:966

約数の個数: 144

約数和(自身を含む): 847687680

約数和(自身を除く): 585888000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 79, 80, 96, 120, 128, 158, 160, 192, 237, 240, 256, 316, 320, 384, 395, 474, 480, 632, 640, 768, 790, 863, 948, 960, 1185, 1264, 1280, 1580, 1726, 1896, 1920, 2370, 2528, 2589, 3160, 3452, 3792, 3840, 4315, 4740, 5056, 5178, 6320, 6904, 7584, 8630, 9480, 10112, 10356, 12640, 12945, 13808, 15168, 17260, 18960, 20224, 20712, 25280, 25890, 27616, 30336, 34520, 37920, 41424, 50560, 51780, 55232, 60672, 68177, 69040, 75840, 82848, 101120, 103560, 110464, 136354, 138080, 151680, 165696, 204531, 207120, 220928, 272708, 276160, 303360, 331392, 340885, 409062, 414240, 545416, 552320, 662784, 681770, 818124, 828480, 1022655, 1090832, 1104640, 1363540, 1636248, 1656960, 2045310, 2181664, 2727080, 3272496, 3313920, 4090620, 4363328, 5454160, 6544992, 8181240, 8726656, 10908320, 13089984, 16362480, 17453312, 21816640, 26179968, 32724960, 43633280, 52359936, 65449920, 87266560, 130899840, 261799680]

約数ペア:

[(1, 261799680), (2, 130899840), (3, 87266560), (4, 65449920), (5, 52359936), (6, 43633280), (8, 32724960), (10, 26179968), (12, 21816640), (15, 17453312), (16, 16362480), (20, 13089984), (24, 10908320), (30, 8726656), (32, 8181240), (40, 6544992), (48, 5454160), (60, 4363328), (64, 4090620), (79, 3313920), (80, 3272496), (96, 2727080), (120, 2181664), (128, 2045310), (158, 1656960), (160, 1636248), (192, 1363540), (237, 1104640), (240, 1090832), (256, 1022655), (316, 828480), (320, 818124), (384, 681770), (395, 662784), (474, 552320), (480, 545416), (632, 414240), (640, 409062), (768, 340885), (790, 331392), (863, 303360), (948, 276160), (960, 272708), (1185, 220928), (1264, 207120), (1280, 204531), (1580, 165696), (1726, 151680), (1896, 138080), (1920, 136354), (2370, 110464), (2528, 103560), (2589, 101120), (3160, 82848), (3452, 75840), (3792, 69040), (3840, 68177), (4315, 60672), (4740, 55232), (5056, 51780), (5178, 50560), (6320, 41424), (6904, 37920), (7584, 34520), (8630, 30336), (9480, 27616), (10112, 25890), (10356, 25280), (12640, 20712), (12945, 20224), (13808, 18960), (15168, 17260)]