4005580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 9031680

約数和(自身を除く): 5026100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 127, 166, 190, 254, 332, 380, 415, 508, 635, 830, 1270, 1577, 1660, 2413, 2540, 3154, 4826, 6308, 7885, 9652, 10541, 12065, 15770, 21082, 24130, 31540, 42164, 48260, 52705, 105410, 200279, 210820, 400558, 801116, 1001395, 2002790, 4005580]

約数ペア:

[(1, 4005580), (2, 2002790), (4, 1001395), (5, 801116), (10, 400558), (19, 210820), (20, 200279), (38, 105410), (76, 52705), (83, 48260), (95, 42164), (127, 31540), (166, 24130), (190, 21082), (254, 15770), (332, 12065), (380, 10541), (415, 9652), (508, 7885), (635, 6308), (830, 4826), (1270, 3154), (1577, 2540), (1660, 2413)]