20766130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 26408270

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 149, 154, 181, 298, 362, 385, 745, 770, 905, 1043, 1267, 1490, 1639, 1810, 1991, 2086, 2534, 3278, 3982, 5215, 6335, 8195, 9955, 10430, 11473, 12670, 13937, 16390, 19910, 22946, 26969, 27874, 53938, 57365, 69685, 114730, 134845, 139370, 188783, 269690, 296659, 377566, 593318, 943915, 1483295, 1887830, 2076613, 2966590, 4153226, 10383065, 20766130]

約数ペア:

[(1, 20766130), (2, 10383065), (5, 4153226), (7, 2966590), (10, 2076613), (11, 1887830), (14, 1483295), (22, 943915), (35, 593318), (55, 377566), (70, 296659), (77, 269690), (110, 188783), (149, 139370), (154, 134845), (181, 114730), (298, 69685), (362, 57365), (385, 53938), (745, 27874), (770, 26969), (905, 22946), (1043, 19910), (1267, 16390), (1490, 13937), (1639, 12670), (1810, 11473), (1991, 10430), (2086, 9955), (2534, 8195), (3278, 6335), (3982, 5215)]