319945730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{197}}^1$

素因数の和:292

約数の個数: 72

約数和(自身を含む): 647646516

約数和(自身を除く): 327700786

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 197, 310, 338, 394, 403, 806, 845, 961, 985, 1690, 1922, 1970, 2015, 2561, 4030, 4805, 5122, 5239, 6107, 9610, 10478, 12214, 12493, 12805, 24986, 25610, 26195, 30535, 33293, 52390, 61070, 62465, 66586, 79391, 124930, 158782, 162409, 166465, 189317, 324818, 332930, 378634, 396955, 793910, 812045, 946585, 1032083, 1624090, 1893170, 2064166, 2461121, 4922242, 5160415, 10320830, 12305605, 24611210, 31994573, 63989146, 159972865, 319945730]

約数ペア:

[(1, 319945730), (2, 159972865), (5, 63989146), (10, 31994573), (13, 24611210), (26, 12305605), (31, 10320830), (62, 5160415), (65, 4922242), (130, 2461121), (155, 2064166), (169, 1893170), (197, 1624090), (310, 1032083), (338, 946585), (394, 812045), (403, 793910), (806, 396955), (845, 378634), (961, 332930), (985, 324818), (1690, 189317), (1922, 166465), (1970, 162409), (2015, 158782), (2561, 124930), (4030, 79391), (4805, 66586), (5122, 62465), (5239, 61070), (6107, 52390), (9610, 33293), (10478, 30535), (12214, 26195), (12493, 25610), (12805, 24986)]