20791320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{829}}^1$

素因数の和:873

約数の個数: 128

約数和(自身を含む): 71712000

約数和(自身を除く): 50920680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 19, 20, 22, 24, 30, 33, 38, 40, 44, 55, 57, 60, 66, 76, 88, 95, 110, 114, 120, 132, 152, 165, 190, 209, 220, 228, 264, 285, 330, 380, 418, 440, 456, 570, 627, 660, 760, 829, 836, 1045, 1140, 1254, 1320, 1658, 1672, 2090, 2280, 2487, 2508, 3135, 3316, 4145, 4180, 4974, 5016, 6270, 6632, 8290, 8360, 9119, 9948, 12435, 12540, 15751, 16580, 18238, 19896, 24870, 25080, 27357, 31502, 33160, 36476, 45595, 47253, 49740, 54714, 63004, 72952, 78755, 91190, 94506, 99480, 109428, 126008, 136785, 157510, 173261, 182380, 189012, 218856, 236265, 273570, 315020, 346522, 364760, 378024, 472530, 519783, 547140, 630040, 693044, 866305, 945060, 1039566, 1094280, 1386088, 1732610, 1890120, 2079132, 2598915, 3465220, 4158264, 5197830, 6930440, 10395660, 20791320]

約数ペア:

[(1, 20791320), (2, 10395660), (3, 6930440), (4, 5197830), (5, 4158264), (6, 3465220), (8, 2598915), (10, 2079132), (11, 1890120), (12, 1732610), (15, 1386088), (19, 1094280), (20, 1039566), (22, 945060), (24, 866305), (30, 693044), (33, 630040), (38, 547140), (40, 519783), (44, 472530), (55, 378024), (57, 364760), (60, 346522), (66, 315020), (76, 273570), (88, 236265), (95, 218856), (110, 189012), (114, 182380), (120, 173261), (132, 157510), (152, 136785), (165, 126008), (190, 109428), (209, 99480), (220, 94506), (228, 91190), (264, 78755), (285, 72952), (330, 63004), (380, 54714), (418, 49740), (440, 47253), (456, 45595), (570, 36476), (627, 33160), (660, 31502), (760, 27357), (829, 25080), (836, 24870), (1045, 19896), (1140, 18238), (1254, 16580), (1320, 15751), (1658, 12540), (1672, 12435), (2090, 9948), (2280, 9119), (2487, 8360), (2508, 8290), (3135, 6632), (3316, 6270), (4145, 5016), (4180, 4974)]