39898480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26249}}^1$

素因数の和:26281

約数の個数: 40

約数和(自身を含む): 97650000

約数和(自身を除く): 57751520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 26249, 52498, 104996, 131245, 209992, 262490, 419984, 498731, 524980, 997462, 1049960, 1994924, 2099920, 2493655, 3989848, 4987310, 7979696, 9974620, 19949240, 39898480]

約数ペア:

[(1, 39898480), (2, 19949240), (4, 9974620), (5, 7979696), (8, 4987310), (10, 3989848), (16, 2493655), (19, 2099920), (20, 1994924), (38, 1049960), (40, 997462), (76, 524980), (80, 498731), (95, 419984), (152, 262490), (190, 209992), (304, 131245), (380, 104996), (760, 52498), (1520, 26249)]