19615760

素因数分解:

$2^4\times 5^1\times {\mathrm{359}}^1\times {\mathrm{683}}^1$

素因数の和:1055

約数の個数: 40

約数和(自身を含む): 45800640

約数和(自身を除く): 26184880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 359, 683, 718, 1366, 1436, 1795, 2732, 2872, 3415, 3590, 5464, 5744, 6830, 7180, 10928, 13660, 14360, 27320, 28720, 54640, 245197, 490394, 980788, 1225985, 1961576, 2451970, 3923152, 4903940, 9807880, 19615760]

約数ペア:

[(1, 19615760), (2, 9807880), (4, 4903940), (5, 3923152), (8, 2451970), (10, 1961576), (16, 1225985), (20, 980788), (40, 490394), (80, 245197), (359, 54640), (683, 28720), (718, 27320), (1366, 14360), (1436, 13660), (1795, 10928), (2732, 7180), (2872, 6830), (3415, 5744), (3590, 5464)]