160781540

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 343949760

約数和(自身を除く): 183168220

約数列:

[1, 2, 4, 5, 10, 20, 109, 131, 218, 262, 436, 524, 545, 563, 655, 1090, 1126, 1310, 2180, 2252, 2620, 2815, 5630, 11260, 14279, 28558, 57116, 61367, 71395, 73753, 122734, 142790, 147506, 245468, 285580, 295012, 306835, 368765, 613670, 737530, 1227340, 1475060, 8039077, 16078154, 32156308, 40195385, 80390770, 160781540]

約数ペア:

[(1, 160781540), (2, 80390770), (4, 40195385), (5, 32156308), (10, 16078154), (20, 8039077), (109, 1475060), (131, 1227340), (218, 737530), (262, 613670), (436, 368765), (524, 306835), (545, 295012), (563, 285580), (655, 245468), (1090, 147506), (1126, 142790), (1310, 122734), (2180, 73753), (2252, 71395), (2620, 61367), (2815, 57116), (5630, 28558), (11260, 14279)]