72204580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 181665792

約数和(自身を除く): 109461212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 127, 131, 140, 155, 217, 254, 262, 310, 434, 508, 524, 620, 635, 655, 868, 889, 917, 1085, 1270, 1310, 1778, 1834, 2170, 2540, 2620, 3556, 3668, 3937, 4061, 4340, 4445, 4585, 7874, 8122, 8890, 9170, 15748, 16244, 16637, 17780, 18340, 19685, 20305, 27559, 28427, 33274, 39370, 40610, 55118, 56854, 66548, 78740, 81220, 83185, 110236, 113708, 116459, 137795, 142135, 166370, 232918, 275590, 284270, 332740, 465836, 515747, 551180, 568540, 582295, 1031494, 1164590, 2062988, 2329180, 2578735, 3610229, 5157470, 7220458, 10314940, 14440916, 18051145, 36102290, 72204580]

約数ペア:

[(1, 72204580), (2, 36102290), (4, 18051145), (5, 14440916), (7, 10314940), (10, 7220458), (14, 5157470), (20, 3610229), (28, 2578735), (31, 2329180), (35, 2062988), (62, 1164590), (70, 1031494), (124, 582295), (127, 568540), (131, 551180), (140, 515747), (155, 465836), (217, 332740), (254, 284270), (262, 275590), (310, 232918), (434, 166370), (508, 142135), (524, 137795), (620, 116459), (635, 113708), (655, 110236), (868, 83185), (889, 81220), (917, 78740), (1085, 66548), (1270, 56854), (1310, 55118), (1778, 40610), (1834, 39370), (2170, 33274), (2540, 28427), (2620, 27559), (3556, 20305), (3668, 19685), (3937, 18340), (4061, 17780), (4340, 16637), (4445, 16244), (4585, 15748), (7874, 9170), (8122, 8890)]