28908240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5237}}^1$

素因数の和:5276

約数の個数: 80

約数和(自身を含む): 93529728

約数和(自身を除く): 64621488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 5237, 5520, 10474, 15711, 20948, 26185, 31422, 41896, 52370, 62844, 78555, 83792, 104740, 120451, 125688, 157110, 209480, 240902, 251376, 314220, 361353, 418960, 481804, 602255, 628440, 722706, 963608, 1204510, 1256880, 1445412, 1806765, 1927216, 2409020, 2890824, 3613530, 4818040, 5781648, 7227060, 9636080, 14454120, 28908240]

約数ペア:

[(1, 28908240), (2, 14454120), (3, 9636080), (4, 7227060), (5, 5781648), (6, 4818040), (8, 3613530), (10, 2890824), (12, 2409020), (15, 1927216), (16, 1806765), (20, 1445412), (23, 1256880), (24, 1204510), (30, 963608), (40, 722706), (46, 628440), (48, 602255), (60, 481804), (69, 418960), (80, 361353), (92, 314220), (115, 251376), (120, 240902), (138, 209480), (184, 157110), (230, 125688), (240, 120451), (276, 104740), (345, 83792), (368, 78555), (460, 62844), (552, 52370), (690, 41896), (920, 31422), (1104, 26185), (1380, 20948), (1840, 15711), (2760, 10474), (5237, 5520)]