19009840

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{811}}^1$

素因数の和:1117

約数の個数: 40

約数和(自身を含む): 44403408

約数和(自身を除く): 25393568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 811, 1172, 1465, 1622, 2344, 2930, 3244, 4055, 4688, 5860, 6488, 8110, 11720, 12976, 16220, 23440, 32440, 64880, 237623, 475246, 950492, 1188115, 1900984, 2376230, 3801968, 4752460, 9504920, 19009840]

約数ペア:

[(1, 19009840), (2, 9504920), (4, 4752460), (5, 3801968), (8, 2376230), (10, 1900984), (16, 1188115), (20, 950492), (40, 475246), (80, 237623), (293, 64880), (586, 32440), (811, 23440), (1172, 16220), (1465, 12976), (1622, 11720), (2344, 8110), (2930, 6488), (3244, 5860), (4055, 4688)]