9812740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 144

約数和(自身を含む): 27578880

約数和(自身を除く): 17766140

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 31, 34, 35, 38, 49, 62, 68, 70, 76, 85, 95, 98, 119, 124, 133, 140, 155, 170, 190, 196, 217, 238, 245, 266, 310, 323, 340, 380, 434, 476, 490, 527, 532, 589, 595, 620, 646, 665, 833, 868, 931, 980, 1054, 1085, 1178, 1190, 1292, 1330, 1519, 1615, 1666, 1862, 2108, 2170, 2261, 2356, 2380, 2635, 2660, 2945, 3038, 3230, 3332, 3689, 3724, 4123, 4165, 4340, 4522, 4655, 5270, 5890, 6076, 6460, 7378, 7595, 8246, 8330, 9044, 9310, 10013, 10540, 11305, 11780, 14756, 15190, 15827, 16492, 16660, 18445, 18620, 20026, 20615, 22610, 25823, 28861, 30380, 31654, 36890, 40052, 41230, 45220, 50065, 51646, 57722, 63308, 70091, 73780, 79135, 82460, 100130, 103292, 115444, 129115, 140182, 144305, 158270, 200260, 258230, 280364, 288610, 316540, 350455, 490637, 516460, 577220, 700910, 981274, 1401820, 1962548, 2453185, 4906370, 9812740]

約数ペア:

[(1, 9812740), (2, 4906370), (4, 2453185), (5, 1962548), (7, 1401820), (10, 981274), (14, 700910), (17, 577220), (19, 516460), (20, 490637), (28, 350455), (31, 316540), (34, 288610), (35, 280364), (38, 258230), (49, 200260), (62, 158270), (68, 144305), (70, 140182), (76, 129115), (85, 115444), (95, 103292), (98, 100130), (119, 82460), (124, 79135), (133, 73780), (140, 70091), (155, 63308), (170, 57722), (190, 51646), (196, 50065), (217, 45220), (238, 41230), (245, 40052), (266, 36890), (310, 31654), (323, 30380), (340, 28861), (380, 25823), (434, 22610), (476, 20615), (490, 20026), (527, 18620), (532, 18445), (589, 16660), (595, 16492), (620, 15827), (646, 15190), (665, 14756), (833, 11780), (868, 11305), (931, 10540), (980, 10013), (1054, 9310), (1085, 9044), (1178, 8330), (1190, 8246), (1292, 7595), (1330, 7378), (1519, 6460), (1615, 6076), (1666, 5890), (1862, 5270), (2108, 4655), (2170, 4522), (2261, 4340), (2356, 4165), (2380, 4123), (2635, 3724), (2660, 3689), (2945, 3332), (3038, 3230)]