51021040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2939}}^1$

素因数の和:2990

約数の個数: 80

約数和(自身を含む): 139991040

約数和(自身を除く): 88970000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 2939, 3472, 4340, 5878, 8680, 11756, 14695, 17360, 20573, 23512, 29390, 41146, 47024, 58780, 82292, 91109, 102865, 117560, 164584, 182218, 205730, 235120, 329168, 364436, 411460, 455545, 637763, 728872, 822920, 911090, 1275526, 1457744, 1645840, 1822180, 2551052, 3188815, 3644360, 5102104, 6377630, 7288720, 10204208, 12755260, 25510520, 51021040]

約数ペア:

[(1, 51021040), (2, 25510520), (4, 12755260), (5, 10204208), (7, 7288720), (8, 6377630), (10, 5102104), (14, 3644360), (16, 3188815), (20, 2551052), (28, 1822180), (31, 1645840), (35, 1457744), (40, 1275526), (56, 911090), (62, 822920), (70, 728872), (80, 637763), (112, 455545), (124, 411460), (140, 364436), (155, 329168), (217, 235120), (248, 205730), (280, 182218), (310, 164584), (434, 117560), (496, 102865), (560, 91109), (620, 82292), (868, 58780), (1085, 47024), (1240, 41146), (1736, 29390), (2170, 23512), (2480, 20573), (2939, 17360), (3472, 14695), (4340, 11756), (5878, 8680)]