991800040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{322013}}^1$

素因数の和:322042

約数の個数: 64

約数和(自身を含む): 2782200960

約数和(自身を除く): 1790400920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 322013, 644026, 1288052, 1610065, 2254091, 2576104, 3220130, 3542143, 4508182, 6440260, 7084286, 9016364, 11270455, 12880520, 14168572, 17710715, 18032728, 22540910, 24795001, 28337144, 35421430, 45081820, 49590002, 70842860, 90163640, 99180004, 123975005, 141685720, 198360008, 247950010, 495900020, 991800040]

約数ペア:

[(1, 991800040), (2, 495900020), (4, 247950010), (5, 198360008), (7, 141685720), (8, 123975005), (10, 99180004), (11, 90163640), (14, 70842860), (20, 49590002), (22, 45081820), (28, 35421430), (35, 28337144), (40, 24795001), (44, 22540910), (55, 18032728), (56, 17710715), (70, 14168572), (77, 12880520), (88, 11270455), (110, 9016364), (140, 7084286), (154, 6440260), (220, 4508182), (280, 3542143), (308, 3220130), (385, 2576104), (440, 2254091), (616, 1610065), (770, 1288052), (1540, 644026), (3080, 322013)]