81380040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5099}}^1$

素因数の和:5139

約数の個数: 128

約数和(自身を含む): 293760000

約数和(自身を除く): 212379960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5099, 5320, 7980, 10198, 15297, 15960, 20396, 25495, 30594, 35693, 40792, 50990, 61188, 71386, 76485, 96881, 101980, 107079, 122376, 142772, 152970, 178465, 193762, 203960, 214158, 285544, 290643, 305940, 356930, 387524, 428316, 484405, 535395, 581286, 611880, 678167, 713860, 775048, 856632, 968810, 1070790, 1162572, 1356334, 1427720, 1453215, 1937620, 2034501, 2141580, 2325144, 2712668, 2906430, 3390835, 3875240, 4069002, 4283160, 5425336, 5812860, 6781670, 8138004, 10172505, 11625720, 13563340, 16276008, 20345010, 27126680, 40690020, 81380040]

約数ペア:

[(1, 81380040), (2, 40690020), (3, 27126680), (4, 20345010), (5, 16276008), (6, 13563340), (7, 11625720), (8, 10172505), (10, 8138004), (12, 6781670), (14, 5812860), (15, 5425336), (19, 4283160), (20, 4069002), (21, 3875240), (24, 3390835), (28, 2906430), (30, 2712668), (35, 2325144), (38, 2141580), (40, 2034501), (42, 1937620), (56, 1453215), (57, 1427720), (60, 1356334), (70, 1162572), (76, 1070790), (84, 968810), (95, 856632), (105, 775048), (114, 713860), (120, 678167), (133, 611880), (140, 581286), (152, 535395), (168, 484405), (190, 428316), (210, 387524), (228, 356930), (266, 305940), (280, 290643), (285, 285544), (380, 214158), (399, 203960), (420, 193762), (456, 178465), (532, 152970), (570, 142772), (665, 122376), (760, 107079), (798, 101980), (840, 96881), (1064, 76485), (1140, 71386), (1330, 61188), (1596, 50990), (1995, 40792), (2280, 35693), (2660, 30594), (3192, 25495), (3990, 20396), (5099, 15960), (5320, 15297), (7980, 10198)]