20685210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7577}}^1$

素因数の和:7607

約数の個数: 64

約数和(自身を含む): 61108992

約数和(自身を除く): 40423782

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7577, 15154, 22731, 37885, 45462, 53039, 75770, 98501, 106078, 113655, 159117, 197002, 227310, 265195, 295503, 318234, 492505, 530390, 591006, 689507, 795585, 985010, 1379014, 1477515, 1591170, 2068521, 2955030, 3447535, 4137042, 6895070, 10342605, 20685210]

約数ペア:

[(1, 20685210), (2, 10342605), (3, 6895070), (5, 4137042), (6, 3447535), (7, 2955030), (10, 2068521), (13, 1591170), (14, 1477515), (15, 1379014), (21, 985010), (26, 795585), (30, 689507), (35, 591006), (39, 530390), (42, 492505), (65, 318234), (70, 295503), (78, 265195), (91, 227310), (105, 197002), (130, 159117), (182, 113655), (195, 106078), (210, 98501), (273, 75770), (390, 53039), (455, 45462), (546, 37885), (910, 22731), (1365, 15154), (2730, 7577)]