7981840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5869}}^1$

素因数の和:5899

約数の個数: 40

約数和(自身を含む): 19652760

約数和(自身を除く): 11670920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 5869, 11738, 23476, 29345, 46952, 58690, 93904, 99773, 117380, 199546, 234760, 399092, 469520, 498865, 798184, 997730, 1596368, 1995460, 3990920, 7981840]

約数ペア:

[(1, 7981840), (2, 3990920), (4, 1995460), (5, 1596368), (8, 997730), (10, 798184), (16, 498865), (17, 469520), (20, 399092), (34, 234760), (40, 199546), (68, 117380), (80, 99773), (85, 93904), (136, 58690), (170, 46952), (272, 29345), (340, 23476), (680, 11738), (1360, 5869)]