31401680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{283}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 78179520

約数和(自身を除く): 46777840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 73, 76, 80, 95, 146, 152, 190, 283, 292, 304, 365, 380, 566, 584, 730, 760, 1132, 1168, 1387, 1415, 1460, 1520, 2264, 2774, 2830, 2920, 4528, 5377, 5548, 5660, 5840, 6935, 10754, 11096, 11320, 13870, 20659, 21508, 22192, 22640, 26885, 27740, 41318, 43016, 53770, 55480, 82636, 86032, 103295, 107540, 110960, 165272, 206590, 215080, 330544, 392521, 413180, 430160, 785042, 826360, 1570084, 1652720, 1962605, 3140168, 3925210, 6280336, 7850420, 15700840, 31401680]

約数ペア:

[(1, 31401680), (2, 15700840), (4, 7850420), (5, 6280336), (8, 3925210), (10, 3140168), (16, 1962605), (19, 1652720), (20, 1570084), (38, 826360), (40, 785042), (73, 430160), (76, 413180), (80, 392521), (95, 330544), (146, 215080), (152, 206590), (190, 165272), (283, 110960), (292, 107540), (304, 103295), (365, 86032), (380, 82636), (566, 55480), (584, 53770), (730, 43016), (760, 41318), (1132, 27740), (1168, 26885), (1387, 22640), (1415, 22192), (1460, 21508), (1520, 20659), (2264, 13870), (2774, 11320), (2830, 11096), (2920, 10754), (4528, 6935), (5377, 5840), (5548, 5660)]