19613080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15817}}^1$

素因数の和:15859

約数の個数: 32

約数和(自身を含む): 45555840

約数和(自身を除く): 25942760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15817, 31634, 63268, 79085, 126536, 158170, 316340, 490327, 632680, 980654, 1961308, 2451635, 3922616, 4903270, 9806540, 19613080]

約数ペア:

[(1, 19613080), (2, 9806540), (4, 4903270), (5, 3922616), (8, 2451635), (10, 1961308), (20, 980654), (31, 632680), (40, 490327), (62, 316340), (124, 158170), (155, 126536), (248, 79085), (310, 63268), (620, 31634), (1240, 15817)]