66666880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:696

約数の個数: 128

約数和(自身を含む): 190356480

約数和(自身を除く): 123689600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 280, 320, 322, 368, 448, 460, 560, 640, 644, 647, 736, 805, 896, 920, 1120, 1288, 1294, 1472, 1610, 1840, 2240, 2576, 2588, 2944, 3220, 3235, 3680, 4480, 4529, 5152, 5176, 6440, 6470, 7360, 9058, 10304, 10352, 12880, 12940, 14720, 14881, 18116, 20608, 20704, 22645, 25760, 25880, 29762, 36232, 41408, 45290, 51520, 51760, 59524, 72464, 74405, 82816, 90580, 103040, 103520, 104167, 119048, 144928, 148810, 181160, 207040, 208334, 238096, 289856, 297620, 362320, 414080, 416668, 476192, 520835, 579712, 595240, 724640, 833336, 952384, 1041670, 1190480, 1449280, 1666672, 1904768, 2083340, 2380960, 2898560, 3333344, 4166680, 4761920, 6666688, 8333360, 9523840, 13333376, 16666720, 33333440, 66666880]

約数ペア:

[(1, 66666880), (2, 33333440), (4, 16666720), (5, 13333376), (7, 9523840), (8, 8333360), (10, 6666688), (14, 4761920), (16, 4166680), (20, 3333344), (23, 2898560), (28, 2380960), (32, 2083340), (35, 1904768), (40, 1666672), (46, 1449280), (56, 1190480), (64, 1041670), (70, 952384), (80, 833336), (92, 724640), (112, 595240), (115, 579712), (128, 520835), (140, 476192), (160, 416668), (161, 414080), (184, 362320), (224, 297620), (230, 289856), (280, 238096), (320, 208334), (322, 207040), (368, 181160), (448, 148810), (460, 144928), (560, 119048), (640, 104167), (644, 103520), (647, 103040), (736, 90580), (805, 82816), (896, 74405), (920, 72464), (1120, 59524), (1288, 51760), (1294, 51520), (1472, 45290), (1610, 41408), (1840, 36232), (2240, 29762), (2576, 25880), (2588, 25760), (2944, 22645), (3220, 20704), (3235, 20608), (3680, 18116), (4480, 14881), (4529, 14720), (5152, 12940), (5176, 12880), (6440, 10352), (6470, 10304), (7360, 9058)]