121207280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89123}}^1$

素因数の和:89153

約数の個数: 40

約数和(自身を含む): 298387152

約数和(自身を除く): 177179872

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 89123, 178246, 356492, 445615, 712984, 891230, 1425968, 1515091, 1782460, 3030182, 3564920, 6060364, 7129840, 7575455, 12120728, 15150910, 24241456, 30301820, 60603640, 121207280]

約数ペア:

[(1, 121207280), (2, 60603640), (4, 30301820), (5, 24241456), (8, 15150910), (10, 12120728), (16, 7575455), (17, 7129840), (20, 6060364), (34, 3564920), (40, 3030182), (68, 1782460), (80, 1515091), (85, 1425968), (136, 891230), (170, 712984), (272, 445615), (340, 356492), (680, 178246), (1360, 89123)]