28913775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 52818048

約数和(自身を除く): 23904273

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 101, 165, 275, 303, 347, 505, 825, 1041, 1111, 1515, 1735, 2525, 3333, 3817, 5205, 5555, 7575, 8675, 11451, 16665, 19085, 26025, 27775, 35047, 57255, 83325, 95425, 105141, 175235, 286275, 385517, 525705, 876175, 1156551, 1927585, 2628525, 5782755, 9637925, 28913775]

約数ペア:

[(1, 28913775), (3, 9637925), (5, 5782755), (11, 2628525), (15, 1927585), (25, 1156551), (33, 876175), (55, 525705), (75, 385517), (101, 286275), (165, 175235), (275, 105141), (303, 95425), (347, 83325), (505, 57255), (825, 35047), (1041, 27775), (1111, 26025), (1515, 19085), (1735, 16665), (2525, 11451), (3333, 8675), (3817, 7575), (5205, 5555)]