18309680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13463}}^1$

素因数の和:13493

約数の個数: 40

約数和(自身を含む): 45077472

約数和(自身を除く): 26767792

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13463, 26926, 53852, 67315, 107704, 134630, 215408, 228871, 269260, 457742, 538520, 915484, 1077040, 1144355, 1830968, 2288710, 3661936, 4577420, 9154840, 18309680]

約数ペア:

[(1, 18309680), (2, 9154840), (4, 4577420), (5, 3661936), (8, 2288710), (10, 1830968), (16, 1144355), (17, 1077040), (20, 915484), (34, 538520), (40, 457742), (68, 269260), (80, 228871), (85, 215408), (136, 134630), (170, 107704), (272, 67315), (340, 53852), (680, 26926), (1360, 13463)]