81913020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1931}}^1$

素因数の和:2051

約数の個数: 96

約数和(自身を含む): 264854016

約数和(自身を除く): 182940996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 101, 105, 140, 202, 210, 303, 404, 420, 505, 606, 707, 1010, 1212, 1414, 1515, 1931, 2020, 2121, 2828, 3030, 3535, 3862, 4242, 5793, 6060, 7070, 7724, 8484, 9655, 10605, 11586, 13517, 14140, 19310, 21210, 23172, 27034, 28965, 38620, 40551, 42420, 54068, 57930, 67585, 81102, 115860, 135170, 162204, 195031, 202755, 270340, 390062, 405510, 585093, 780124, 811020, 975155, 1170186, 1365217, 1950310, 2340372, 2730434, 2925465, 3900620, 4095651, 5460868, 5850930, 6826085, 8191302, 11701860, 13652170, 16382604, 20478255, 27304340, 40956510, 81913020]

約数ペア:

[(1, 81913020), (2, 40956510), (3, 27304340), (4, 20478255), (5, 16382604), (6, 13652170), (7, 11701860), (10, 8191302), (12, 6826085), (14, 5850930), (15, 5460868), (20, 4095651), (21, 3900620), (28, 2925465), (30, 2730434), (35, 2340372), (42, 1950310), (60, 1365217), (70, 1170186), (84, 975155), (101, 811020), (105, 780124), (140, 585093), (202, 405510), (210, 390062), (303, 270340), (404, 202755), (420, 195031), (505, 162204), (606, 135170), (707, 115860), (1010, 81102), (1212, 67585), (1414, 57930), (1515, 54068), (1931, 42420), (2020, 40551), (2121, 38620), (2828, 28965), (3030, 27034), (3535, 23172), (3862, 21210), (4242, 19310), (5793, 14140), (6060, 13517), (7070, 11586), (7724, 10605), (8484, 9655)]