19298480

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1619}}^1$

素因数の和:1781

約数の個数: 40

約数和(自身を含む): 45198000

約数和(自身を除く): 25899520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 1619, 2384, 2980, 3238, 5960, 6476, 8095, 11920, 12952, 16190, 25904, 32380, 64760, 129520, 241231, 482462, 964924, 1206155, 1929848, 2412310, 3859696, 4824620, 9649240, 19298480]

約数ペア:

[(1, 19298480), (2, 9649240), (4, 4824620), (5, 3859696), (8, 2412310), (10, 1929848), (16, 1206155), (20, 964924), (40, 482462), (80, 241231), (149, 129520), (298, 64760), (596, 32380), (745, 25904), (1192, 16190), (1490, 12952), (1619, 11920), (2384, 8095), (2980, 6476), (3238, 5960)]