7948720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7643}}^1$

素因数の和:7669

約数の個数: 40

約数和(自身を含む): 19904976

約数和(自身を除く): 11956256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7643, 15286, 30572, 38215, 61144, 76430, 99359, 122288, 152860, 198718, 305720, 397436, 496795, 611440, 794872, 993590, 1589744, 1987180, 3974360, 7948720]

約数ペア:

[(1, 7948720), (2, 3974360), (4, 1987180), (5, 1589744), (8, 993590), (10, 794872), (13, 611440), (16, 496795), (20, 397436), (26, 305720), (40, 198718), (52, 152860), (65, 122288), (80, 99359), (104, 76430), (130, 61144), (208, 38215), (260, 30572), (520, 15286), (1040, 7643)]