81655440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1087}}^1$

素因数の和:1416

約数の個数: 80

約数和(自身を含む): 254174208

約数和(自身を除く): 172518768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 313, 626, 939, 1087, 1252, 1565, 1878, 2174, 2504, 3130, 3261, 3756, 4348, 4695, 5008, 5435, 6260, 6522, 7512, 8696, 9390, 10870, 12520, 13044, 15024, 16305, 17392, 18780, 21740, 25040, 26088, 32610, 37560, 43480, 52176, 65220, 75120, 86960, 130440, 260880, 340231, 680462, 1020693, 1360924, 1701155, 2041386, 2721848, 3402310, 4082772, 5103465, 5443696, 6804620, 8165544, 10206930, 13609240, 16331088, 20413860, 27218480, 40827720, 81655440]

約数ペア:

[(1, 81655440), (2, 40827720), (3, 27218480), (4, 20413860), (5, 16331088), (6, 13609240), (8, 10206930), (10, 8165544), (12, 6804620), (15, 5443696), (16, 5103465), (20, 4082772), (24, 3402310), (30, 2721848), (40, 2041386), (48, 1701155), (60, 1360924), (80, 1020693), (120, 680462), (240, 340231), (313, 260880), (626, 130440), (939, 86960), (1087, 75120), (1252, 65220), (1565, 52176), (1878, 43480), (2174, 37560), (2504, 32610), (3130, 26088), (3261, 25040), (3756, 21740), (4348, 18780), (4695, 17392), (5008, 16305), (5435, 15024), (6260, 13044), (6522, 12520), (7512, 10870), (8696, 9390)]