78240780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5237}}^1$

素因数の和:5335

約数の個数: 72

約数和(自身を含む): 240235632

約数和(自身を除く): 161994852

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, 5237, 7470, 10474, 14940, 15711, 20948, 26185, 31422, 47133, 52370, 62844, 78555, 94266, 104740, 157110, 188532, 235665, 314220, 434671, 471330, 869342, 942660, 1304013, 1738684, 2173355, 2608026, 3912039, 4346710, 5216052, 6520065, 7824078, 8693420, 13040130, 15648156, 19560195, 26080260, 39120390, 78240780]

約数ペア:

[(1, 78240780), (2, 39120390), (3, 26080260), (4, 19560195), (5, 15648156), (6, 13040130), (9, 8693420), (10, 7824078), (12, 6520065), (15, 5216052), (18, 4346710), (20, 3912039), (30, 2608026), (36, 2173355), (45, 1738684), (60, 1304013), (83, 942660), (90, 869342), (166, 471330), (180, 434671), (249, 314220), (332, 235665), (415, 188532), (498, 157110), (747, 104740), (830, 94266), (996, 78555), (1245, 62844), (1494, 52370), (1660, 47133), (2490, 31422), (2988, 26185), (3735, 20948), (4980, 15711), (5237, 14940), (7470, 10474)]