78840520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{3037}}^1$

素因数の和:3118

約数の個数: 64

約数和(自身を含む): 196862400

約数和(自身を除く): 118021880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 649, 1180, 1298, 2360, 2596, 3037, 3245, 5192, 6074, 6490, 12148, 12980, 15185, 24296, 25960, 30370, 33407, 60740, 66814, 121480, 133628, 167035, 179183, 267256, 334070, 358366, 668140, 716732, 895915, 1336280, 1433464, 1791830, 1971013, 3583660, 3942026, 7167320, 7884052, 9855065, 15768104, 19710130, 39420260, 78840520]

約数ペア:

[(1, 78840520), (2, 39420260), (4, 19710130), (5, 15768104), (8, 9855065), (10, 7884052), (11, 7167320), (20, 3942026), (22, 3583660), (40, 1971013), (44, 1791830), (55, 1433464), (59, 1336280), (88, 895915), (110, 716732), (118, 668140), (220, 358366), (236, 334070), (295, 267256), (440, 179183), (472, 167035), (590, 133628), (649, 121480), (1180, 66814), (1298, 60740), (2360, 33407), (2596, 30370), (3037, 25960), (3245, 24296), (5192, 15185), (6074, 12980), (6490, 12148)]