28778768

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{691}}^1$

素因数の和:855

約数の個数: 40

約数和(自身を含む): 59207520

約数和(自身を除く): 30428752

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 137, 152, 274, 304, 548, 691, 1096, 1382, 2192, 2603, 2764, 5206, 5528, 10412, 11056, 13129, 20824, 26258, 41648, 52516, 94667, 105032, 189334, 210064, 378668, 757336, 1514672, 1798673, 3597346, 7194692, 14389384, 28778768]

約数ペア:

[(1, 28778768), (2, 14389384), (4, 7194692), (8, 3597346), (16, 1798673), (19, 1514672), (38, 757336), (76, 378668), (137, 210064), (152, 189334), (274, 105032), (304, 94667), (548, 52516), (691, 41648), (1096, 26258), (1382, 20824), (2192, 13129), (2603, 11056), (2764, 10412), (5206, 5528)]