348530740

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{971}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 743649984

約数和(自身を除く): 395119244

約数列:

[1, 2, 4, 5, 10, 20, 131, 137, 262, 274, 524, 548, 655, 685, 971, 1310, 1370, 1942, 2620, 2740, 3884, 4855, 9710, 17947, 19420, 35894, 71788, 89735, 127201, 133027, 179470, 254402, 266054, 358940, 508804, 532108, 636005, 665135, 1272010, 1330270, 2544020, 2660540, 17426537, 34853074, 69706148, 87132685, 174265370, 348530740]

約数ペア:

[(1, 348530740), (2, 174265370), (4, 87132685), (5, 69706148), (10, 34853074), (20, 17426537), (131, 2660540), (137, 2544020), (262, 1330270), (274, 1272010), (524, 665135), (548, 636005), (655, 532108), (685, 508804), (971, 358940), (1310, 266054), (1370, 254402), (1942, 179470), (2620, 133027), (2740, 127201), (3884, 89735), (4855, 71788), (9710, 35894), (17947, 19420)]