64978680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1811}}^1$

素因数の和:1861

約数の個数: 128

約数和(自身を含む): 219179520

約数和(自身を除く): 154200840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 897, 920, 1196, 1380, 1495, 1560, 1794, 1811, 2392, 2760, 2990, 3588, 3622, 4485, 5433, 5980, 7176, 7244, 8970, 9055, 10866, 11960, 14488, 17940, 18110, 21732, 23543, 27165, 35880, 36220, 41653, 43464, 47086, 54330, 70629, 72440, 83306, 94172, 108660, 117715, 124959, 141258, 166612, 188344, 208265, 217320, 235430, 249918, 282516, 333224, 353145, 416530, 470860, 499836, 541489, 565032, 624795, 706290, 833060, 941720, 999672, 1082978, 1249590, 1412580, 1624467, 1666120, 2165956, 2499180, 2707445, 2825160, 3248934, 4331912, 4998360, 5414890, 6497868, 8122335, 10829780, 12995736, 16244670, 21659560, 32489340, 64978680]

約数ペア:

[(1, 64978680), (2, 32489340), (3, 21659560), (4, 16244670), (5, 12995736), (6, 10829780), (8, 8122335), (10, 6497868), (12, 5414890), (13, 4998360), (15, 4331912), (20, 3248934), (23, 2825160), (24, 2707445), (26, 2499180), (30, 2165956), (39, 1666120), (40, 1624467), (46, 1412580), (52, 1249590), (60, 1082978), (65, 999672), (69, 941720), (78, 833060), (92, 706290), (104, 624795), (115, 565032), (120, 541489), (130, 499836), (138, 470860), (156, 416530), (184, 353145), (195, 333224), (230, 282516), (260, 249918), (276, 235430), (299, 217320), (312, 208265), (345, 188344), (390, 166612), (460, 141258), (520, 124959), (552, 117715), (598, 108660), (690, 94172), (780, 83306), (897, 72440), (920, 70629), (1196, 54330), (1380, 47086), (1495, 43464), (1560, 41653), (1794, 36220), (1811, 35880), (2392, 27165), (2760, 23543), (2990, 21732), (3588, 18110), (3622, 17940), (4485, 14488), (5433, 11960), (5980, 10866), (7176, 9055), (7244, 8970)]