81982420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 195592320

約数和(自身を除く): 113609900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 83, 116, 130, 131, 145, 166, 260, 262, 290, 332, 377, 415, 524, 580, 655, 754, 830, 1079, 1310, 1508, 1660, 1703, 1885, 2158, 2407, 2620, 3406, 3770, 3799, 4316, 4814, 5395, 6812, 7540, 7598, 8515, 9628, 10790, 10873, 12035, 15196, 17030, 18995, 21580, 21746, 24070, 31291, 34060, 37990, 43492, 48140, 49387, 54365, 62582, 75980, 98774, 108730, 125164, 141349, 156455, 197548, 217460, 246935, 282698, 312910, 315317, 493870, 565396, 625820, 630634, 706745, 987740, 1261268, 1413490, 1576585, 2826980, 3153170, 4099121, 6306340, 8198242, 16396484, 20495605, 40991210, 81982420]

約数ペア:

[(1, 81982420), (2, 40991210), (4, 20495605), (5, 16396484), (10, 8198242), (13, 6306340), (20, 4099121), (26, 3153170), (29, 2826980), (52, 1576585), (58, 1413490), (65, 1261268), (83, 987740), (116, 706745), (130, 630634), (131, 625820), (145, 565396), (166, 493870), (260, 315317), (262, 312910), (290, 282698), (332, 246935), (377, 217460), (415, 197548), (524, 156455), (580, 141349), (655, 125164), (754, 108730), (830, 98774), (1079, 75980), (1310, 62582), (1508, 54365), (1660, 49387), (1703, 48140), (1885, 43492), (2158, 37990), (2407, 34060), (2620, 31291), (3406, 24070), (3770, 21746), (3799, 21580), (4316, 18995), (4814, 17030), (5395, 15196), (6812, 12035), (7540, 10873), (7598, 10790), (8515, 9628)]