686263420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:791

約数の個数: 96

約数和(自身を含む): 1572149376

約数和(自身を除く): 885885956

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 61, 74, 92, 115, 122, 148, 185, 230, 244, 305, 370, 460, 610, 661, 740, 851, 1220, 1322, 1403, 1702, 2257, 2644, 2806, 3305, 3404, 4255, 4514, 5612, 6610, 7015, 8510, 9028, 11285, 13220, 14030, 15203, 17020, 22570, 24457, 28060, 30406, 40321, 45140, 48914, 51911, 60812, 76015, 80642, 97828, 103822, 122285, 152030, 161284, 201605, 207644, 244570, 259555, 304060, 403210, 489140, 519110, 562511, 806420, 927383, 1038220, 1125022, 1491877, 1854766, 2250044, 2812555, 2983754, 3709532, 4636915, 5625110, 5967508, 7459385, 9273830, 11250220, 14918770, 18547660, 29837540, 34313171, 68626342, 137252684, 171565855, 343131710, 686263420]

約数ペア:

[(1, 686263420), (2, 343131710), (4, 171565855), (5, 137252684), (10, 68626342), (20, 34313171), (23, 29837540), (37, 18547660), (46, 14918770), (61, 11250220), (74, 9273830), (92, 7459385), (115, 5967508), (122, 5625110), (148, 4636915), (185, 3709532), (230, 2983754), (244, 2812555), (305, 2250044), (370, 1854766), (460, 1491877), (610, 1125022), (661, 1038220), (740, 927383), (851, 806420), (1220, 562511), (1322, 519110), (1403, 489140), (1702, 403210), (2257, 304060), (2644, 259555), (2806, 244570), (3305, 207644), (3404, 201605), (4255, 161284), (4514, 152030), (5612, 122285), (6610, 103822), (7015, 97828), (8510, 80642), (9028, 76015), (11285, 60812), (13220, 51911), (14030, 48914), (15203, 45140), (17020, 40321), (22570, 30406), (24457, 28060)]