87002120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70163}}^1$

素因数の和:70205

約数の個数: 32

約数和(自身を含む): 202072320

約数和(自身を除く): 115070200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 70163, 140326, 280652, 350815, 561304, 701630, 1403260, 2175053, 2806520, 4350106, 8700212, 10875265, 17400424, 21750530, 43501060, 87002120]

約数ペア:

[(1, 87002120), (2, 43501060), (4, 21750530), (5, 17400424), (8, 10875265), (10, 8700212), (20, 4350106), (31, 2806520), (40, 2175053), (62, 1403260), (124, 701630), (155, 561304), (248, 350815), (310, 280652), (620, 140326), (1240, 70163)]