161465140

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1\times {\mathrm{383}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 344881152

約数和(自身を除く): 183416012

約数列:

[1, 2, 4, 5, 10, 20, 107, 197, 214, 383, 394, 428, 535, 766, 788, 985, 1070, 1532, 1915, 1970, 2140, 3830, 3940, 7660, 21079, 40981, 42158, 75451, 81962, 84316, 105395, 150902, 163924, 204905, 210790, 301804, 377255, 409810, 421580, 754510, 819620, 1509020, 8073257, 16146514, 32293028, 40366285, 80732570, 161465140]

約数ペア:

[(1, 161465140), (2, 80732570), (4, 40366285), (5, 32293028), (10, 16146514), (20, 8073257), (107, 1509020), (197, 819620), (214, 754510), (383, 421580), (394, 409810), (428, 377255), (535, 301804), (766, 210790), (788, 204905), (985, 163924), (1070, 150902), (1532, 105395), (1915, 84316), (1970, 81962), (2140, 75451), (3830, 42158), (3940, 40981), (7660, 21079)]