2478351780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{165887}}^1$

素因数の和:165985

約数の個数: 72

約数和(自身を含む): 7608287232

約数和(自身を除く): 5129935452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1494, 1660, 2490, 2988, 3735, 4980, 7470, 14940, 165887, 331774, 497661, 663548, 829435, 995322, 1492983, 1658870, 1990644, 2488305, 2985966, 3317740, 4976610, 5971932, 7464915, 9953220, 13768621, 14929830, 27537242, 29859660, 41305863, 55074484, 68843105, 82611726, 123917589, 137686210, 165223452, 206529315, 247835178, 275372420, 413058630, 495670356, 619587945, 826117260, 1239175890, 2478351780]

約数ペア:

[(1, 2478351780), (2, 1239175890), (3, 826117260), (4, 619587945), (5, 495670356), (6, 413058630), (9, 275372420), (10, 247835178), (12, 206529315), (15, 165223452), (18, 137686210), (20, 123917589), (30, 82611726), (36, 68843105), (45, 55074484), (60, 41305863), (83, 29859660), (90, 27537242), (166, 14929830), (180, 13768621), (249, 9953220), (332, 7464915), (415, 5971932), (498, 4976610), (747, 3317740), (830, 2985966), (996, 2488305), (1245, 1990644), (1494, 1658870), (1660, 1492983), (2490, 995322), (2988, 829435), (3735, 663548), (4980, 497661), (7470, 331774), (14940, 165887)]