28004860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5669}}^1$

素因数の和:5710

約数の個数: 48

約数和(自身を含む): 66679200

約数和(自身を除く): 38674340

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 5669, 11338, 22676, 28345, 56690, 73697, 107711, 113380, 147394, 215422, 294788, 368485, 430844, 538555, 736970, 1077110, 1400243, 1473940, 2154220, 2800486, 5600972, 7001215, 14002430, 28004860]

約数ペア:

[(1, 28004860), (2, 14002430), (4, 7001215), (5, 5600972), (10, 2800486), (13, 2154220), (19, 1473940), (20, 1400243), (26, 1077110), (38, 736970), (52, 538555), (65, 430844), (76, 368485), (95, 294788), (130, 215422), (190, 147394), (247, 113380), (260, 107711), (380, 73697), (494, 56690), (988, 28345), (1235, 22676), (2470, 11338), (4940, 5669)]