1554140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{653}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 3955392

約数和(自身を除く): 2401252

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 653, 1190, 1306, 2380, 2612, 3265, 4571, 6530, 9142, 11101, 13060, 18284, 22202, 22855, 44404, 45710, 55505, 77707, 91420, 111010, 155414, 222020, 310828, 388535, 777070, 1554140]

約数ペア:

[(1, 1554140), (2, 777070), (4, 388535), (5, 310828), (7, 222020), (10, 155414), (14, 111010), (17, 91420), (20, 77707), (28, 55505), (34, 45710), (35, 44404), (68, 22855), (70, 22202), (85, 18284), (119, 13060), (140, 11101), (170, 9142), (238, 6530), (340, 4571), (476, 3265), (595, 2612), (653, 2380), (1190, 1306)]