820663620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{63031}}^1$

素因数の和:63081

約数の個数: 96

約数和(自身を含む): 2710880256

約数和(自身を除く): 1890216636

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2604, 3255, 4340, 6510, 13020, 63031, 126062, 189093, 252124, 315155, 378186, 441217, 630310, 756372, 882434, 945465, 1260620, 1323651, 1764868, 1890930, 1953961, 2206085, 2647302, 3781860, 3907922, 4412170, 5294604, 5861883, 6618255, 7815844, 8824340, 9769805, 11723766, 13236510, 13677727, 19539610, 23447532, 26473020, 27355454, 29309415, 39079220, 41033181, 54710908, 58618830, 68388635, 82066362, 117237660, 136777270, 164132724, 205165905, 273554540, 410331810, 820663620]

約数ペア:

[(1, 820663620), (2, 410331810), (3, 273554540), (4, 205165905), (5, 164132724), (6, 136777270), (7, 117237660), (10, 82066362), (12, 68388635), (14, 58618830), (15, 54710908), (20, 41033181), (21, 39079220), (28, 29309415), (30, 27355454), (31, 26473020), (35, 23447532), (42, 19539610), (60, 13677727), (62, 13236510), (70, 11723766), (84, 9769805), (93, 8824340), (105, 7815844), (124, 6618255), (140, 5861883), (155, 5294604), (186, 4412170), (210, 3907922), (217, 3781860), (310, 2647302), (372, 2206085), (420, 1953961), (434, 1890930), (465, 1764868), (620, 1323651), (651, 1260620), (868, 945465), (930, 882434), (1085, 756372), (1302, 630310), (1860, 441217), (2170, 378186), (2604, 315155), (3255, 252124), (4340, 189093), (6510, 126062), (13020, 63031)]