3191540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 7439040

約数和(自身を除く): 4247500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 163, 178, 220, 326, 356, 445, 652, 815, 890, 979, 1630, 1780, 1793, 1958, 3260, 3586, 3916, 4895, 7172, 8965, 9790, 14507, 17930, 19580, 29014, 35860, 58028, 72535, 145070, 159577, 290140, 319154, 638308, 797885, 1595770, 3191540]

約数ペア:

[(1, 3191540), (2, 1595770), (4, 797885), (5, 638308), (10, 319154), (11, 290140), (20, 159577), (22, 145070), (44, 72535), (55, 58028), (89, 35860), (110, 29014), (163, 19580), (178, 17930), (220, 14507), (326, 9790), (356, 8965), (445, 7172), (652, 4895), (815, 3916), (890, 3586), (979, 3260), (1630, 1958), (1780, 1793)]