30905140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7121}}^1$

素因数の和:7168

約数の個数: 48

約数和(自身を含む): 76575744

約数和(自身を除く): 45670604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 7121, 14242, 28484, 35605, 49847, 71210, 99694, 142420, 199388, 220751, 249235, 441502, 498470, 883004, 996940, 1103755, 1545257, 2207510, 3090514, 4415020, 6181028, 7726285, 15452570, 30905140]

約数ペア:

[(1, 30905140), (2, 15452570), (4, 7726285), (5, 6181028), (7, 4415020), (10, 3090514), (14, 2207510), (20, 1545257), (28, 1103755), (31, 996940), (35, 883004), (62, 498470), (70, 441502), (124, 249235), (140, 220751), (155, 199388), (217, 142420), (310, 99694), (434, 71210), (620, 49847), (868, 35605), (1085, 28484), (2170, 14242), (4340, 7121)]