81919110

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:878

約数の個数: 128

約数和(自身を含む): 248822784

約数和(自身を除く): 166903674

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 37, 39, 42, 65, 70, 74, 78, 91, 105, 111, 130, 182, 185, 195, 210, 222, 259, 273, 370, 390, 455, 481, 518, 546, 555, 777, 811, 910, 962, 1110, 1295, 1365, 1443, 1554, 1622, 2405, 2433, 2590, 2730, 2886, 3367, 3885, 4055, 4810, 4866, 5677, 6734, 7215, 7770, 8110, 10101, 10543, 11354, 12165, 14430, 16835, 17031, 20202, 21086, 24330, 28385, 30007, 31629, 33670, 34062, 50505, 52715, 56770, 60014, 63258, 73801, 85155, 90021, 101010, 105430, 147602, 150035, 158145, 170310, 180042, 210049, 221403, 300070, 316290, 369005, 390091, 420098, 442806, 450105, 630147, 738010, 780182, 900210, 1050245, 1107015, 1170273, 1260294, 1950455, 2100490, 2214030, 2340546, 2730637, 3150735, 3900910, 5461274, 5851365, 6301470, 8191911, 11702730, 13653185, 16383822, 27306370, 40959555, 81919110]

約数ペア:

[(1, 81919110), (2, 40959555), (3, 27306370), (5, 16383822), (6, 13653185), (7, 11702730), (10, 8191911), (13, 6301470), (14, 5851365), (15, 5461274), (21, 3900910), (26, 3150735), (30, 2730637), (35, 2340546), (37, 2214030), (39, 2100490), (42, 1950455), (65, 1260294), (70, 1170273), (74, 1107015), (78, 1050245), (91, 900210), (105, 780182), (111, 738010), (130, 630147), (182, 450105), (185, 442806), (195, 420098), (210, 390091), (222, 369005), (259, 316290), (273, 300070), (370, 221403), (390, 210049), (455, 180042), (481, 170310), (518, 158145), (546, 150035), (555, 147602), (777, 105430), (811, 101010), (910, 90021), (962, 85155), (1110, 73801), (1295, 63258), (1365, 60014), (1443, 56770), (1554, 52715), (1622, 50505), (2405, 34062), (2433, 33670), (2590, 31629), (2730, 30007), (2886, 28385), (3367, 24330), (3885, 21086), (4055, 20202), (4810, 17031), (4866, 16835), (5677, 14430), (6734, 12165), (7215, 11354), (7770, 10543), (8110, 10101)]