16785740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 37470720

約数和(自身を除く): 20684980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 163, 190, 271, 326, 380, 542, 652, 815, 1084, 1355, 1630, 2710, 3097, 3260, 5149, 5420, 6194, 10298, 12388, 15485, 20596, 25745, 30970, 44173, 51490, 61940, 88346, 102980, 176692, 220865, 441730, 839287, 883460, 1678574, 3357148, 4196435, 8392870, 16785740]

約数ペア:

[(1, 16785740), (2, 8392870), (4, 4196435), (5, 3357148), (10, 1678574), (19, 883460), (20, 839287), (38, 441730), (76, 220865), (95, 176692), (163, 102980), (190, 88346), (271, 61940), (326, 51490), (380, 44173), (542, 30970), (652, 25745), (815, 20596), (1084, 15485), (1355, 12388), (1630, 10298), (2710, 6194), (3097, 5420), (3260, 5149)]