2021656240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{22543}}^1$

素因数の和:22634

約数の個数: 80

約数和(自身を含む): 5031820800

約数和(自身を除く): 3010164560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 236, 295, 304, 380, 472, 590, 760, 944, 1121, 1180, 1520, 2242, 2360, 4484, 4720, 5605, 8968, 11210, 17936, 22420, 22543, 44840, 45086, 89680, 90172, 112715, 180344, 225430, 360688, 428317, 450860, 856634, 901720, 1330037, 1713268, 1803440, 2141585, 2660074, 3426536, 4283170, 5320148, 6650185, 6853072, 8566340, 10640296, 13300370, 17132680, 21280592, 25270703, 26600740, 34265360, 50541406, 53201480, 101082812, 106402960, 126353515, 202165624, 252707030, 404331248, 505414060, 1010828120, 2021656240]

約数ペア:

[(1, 2021656240), (2, 1010828120), (4, 505414060), (5, 404331248), (8, 252707030), (10, 202165624), (16, 126353515), (19, 106402960), (20, 101082812), (38, 53201480), (40, 50541406), (59, 34265360), (76, 26600740), (80, 25270703), (95, 21280592), (118, 17132680), (152, 13300370), (190, 10640296), (236, 8566340), (295, 6853072), (304, 6650185), (380, 5320148), (472, 4283170), (590, 3426536), (760, 2660074), (944, 2141585), (1121, 1803440), (1180, 1713268), (1520, 1330037), (2242, 901720), (2360, 856634), (4484, 450860), (4720, 428317), (5605, 360688), (8968, 225430), (11210, 180344), (17936, 112715), (22420, 90172), (22543, 89680), (44840, 45086)]