161131490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39983}}^1$

素因数の和:40034

約数の個数: 32

約数和(自身を含む): 322430976

約数和(自身を除く): 161299486

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 39983, 79966, 199915, 399830, 519779, 1039558, 1239473, 2478946, 2598895, 5197790, 6197365, 12394730, 16113149, 32226298, 80565745, 161131490]

約数ペア:

[(1, 161131490), (2, 80565745), (5, 32226298), (10, 16113149), (13, 12394730), (26, 6197365), (31, 5197790), (62, 2598895), (65, 2478946), (130, 1239473), (155, 1039558), (310, 519779), (403, 399830), (806, 199915), (2015, 79966), (4030, 39983)]