340366820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{797}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 725554368

約数和(自身を除く): 385187548

約数列:

[1, 2, 4, 5, 10, 20, 131, 163, 262, 326, 524, 652, 655, 797, 815, 1310, 1594, 1630, 2620, 3188, 3260, 3985, 7970, 15940, 21353, 42706, 85412, 104407, 106765, 129911, 208814, 213530, 259822, 417628, 427060, 519644, 522035, 649555, 1044070, 1299110, 2088140, 2598220, 17018341, 34036682, 68073364, 85091705, 170183410, 340366820]

約数ペア:

[(1, 340366820), (2, 170183410), (4, 85091705), (5, 68073364), (10, 34036682), (20, 17018341), (131, 2598220), (163, 2088140), (262, 1299110), (326, 1044070), (524, 649555), (652, 522035), (655, 519644), (797, 427060), (815, 417628), (1310, 259822), (1594, 213530), (1630, 208814), (2620, 129911), (3188, 106765), (3260, 104407), (3985, 85412), (7970, 42706), (15940, 21353)]