15920304820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{27581}}^1$

素因数の和:27654

約数の個数: 144

約数和(自身を含む): 42260037120

約数和(自身を除く): 26339732300

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 49, 62, 70, 76, 95, 98, 124, 133, 140, 155, 190, 196, 217, 245, 266, 310, 380, 434, 490, 532, 589, 620, 665, 868, 931, 980, 1085, 1178, 1330, 1519, 1862, 2170, 2356, 2660, 2945, 3038, 3724, 4123, 4340, 4655, 5890, 6076, 7595, 8246, 9310, 11780, 15190, 16492, 18620, 20615, 27581, 28861, 30380, 41230, 55162, 57722, 82460, 110324, 115444, 137905, 144305, 193067, 275810, 288610, 386134, 524039, 551620, 577220, 772268, 855011, 965335, 1048078, 1351469, 1710022, 1930670, 2096156, 2620195, 2702938, 3420044, 3668273, 3861340, 4275055, 5240390, 5405876, 5985077, 6757345, 7336546, 8550110, 10480780, 11970154, 13514690, 14673092, 16245209, 17100220, 18341365, 23940308, 25677911, 27029380, 29925385, 32490418, 36682730, 41895539, 51355822, 59850770, 64980836, 73365460, 81226045, 83791078, 102711644, 113716463, 119701540, 128389555, 162452090, 167582156, 209477695, 227432926, 256779110, 324904180, 418955390, 454865852, 513558220, 568582315, 796015241, 837910780, 1137164630, 1592030482, 2274329260, 3184060964, 3980076205, 7960152410, 15920304820]

約数ペア:

[(1, 15920304820), (2, 7960152410), (4, 3980076205), (5, 3184060964), (7, 2274329260), (10, 1592030482), (14, 1137164630), (19, 837910780), (20, 796015241), (28, 568582315), (31, 513558220), (35, 454865852), (38, 418955390), (49, 324904180), (62, 256779110), (70, 227432926), (76, 209477695), (95, 167582156), (98, 162452090), (124, 128389555), (133, 119701540), (140, 113716463), (155, 102711644), (190, 83791078), (196, 81226045), (217, 73365460), (245, 64980836), (266, 59850770), (310, 51355822), (380, 41895539), (434, 36682730), (490, 32490418), (532, 29925385), (589, 27029380), (620, 25677911), (665, 23940308), (868, 18341365), (931, 17100220), (980, 16245209), (1085, 14673092), (1178, 13514690), (1330, 11970154), (1519, 10480780), (1862, 8550110), (2170, 7336546), (2356, 6757345), (2660, 5985077), (2945, 5405876), (3038, 5240390), (3724, 4275055), (4123, 3861340), (4340, 3668273), (4655, 3420044), (5890, 2702938), (6076, 2620195), (7595, 2096156), (8246, 1930670), (9310, 1710022), (11780, 1351469), (15190, 1048078), (16492, 965335), (18620, 855011), (20615, 772268), (27581, 577220), (28861, 551620), (30380, 524039), (41230, 386134), (55162, 288610), (57722, 275810), (82460, 193067), (110324, 144305), (115444, 137905)]