28827560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 69249600

約数和(自身を除く): 40422040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 83, 95, 152, 166, 190, 332, 380, 415, 457, 664, 760, 830, 914, 1577, 1660, 1828, 2285, 3154, 3320, 3656, 4570, 6308, 7885, 8683, 9140, 12616, 15770, 17366, 18280, 31540, 34732, 37931, 43415, 63080, 69464, 75862, 86830, 151724, 173660, 189655, 303448, 347320, 379310, 720689, 758620, 1441378, 1517240, 2882756, 3603445, 5765512, 7206890, 14413780, 28827560]

約数ペア:

[(1, 28827560), (2, 14413780), (4, 7206890), (5, 5765512), (8, 3603445), (10, 2882756), (19, 1517240), (20, 1441378), (38, 758620), (40, 720689), (76, 379310), (83, 347320), (95, 303448), (152, 189655), (166, 173660), (190, 151724), (332, 86830), (380, 75862), (415, 69464), (457, 63080), (664, 43415), (760, 37931), (830, 34732), (914, 31540), (1577, 18280), (1660, 17366), (1828, 15770), (2285, 12616), (3154, 9140), (3320, 8683), (3656, 7885), (4570, 6308)]