68145520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{563}}^1$

素因数の和:682

約数の個数: 80

約数和(自身を含む): 169944480

約数和(自身を除く): 101798960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 89, 136, 170, 178, 272, 340, 356, 445, 563, 680, 712, 890, 1126, 1360, 1424, 1513, 1780, 2252, 2815, 3026, 3560, 4504, 5630, 6052, 7120, 7565, 9008, 9571, 11260, 12104, 15130, 19142, 22520, 24208, 30260, 38284, 45040, 47855, 50107, 60520, 76568, 95710, 100214, 121040, 153136, 191420, 200428, 250535, 382840, 400856, 501070, 765680, 801712, 851819, 1002140, 1703638, 2004280, 3407276, 4008560, 4259095, 6814552, 8518190, 13629104, 17036380, 34072760, 68145520]

約数ペア:

[(1, 68145520), (2, 34072760), (4, 17036380), (5, 13629104), (8, 8518190), (10, 6814552), (16, 4259095), (17, 4008560), (20, 3407276), (34, 2004280), (40, 1703638), (68, 1002140), (80, 851819), (85, 801712), (89, 765680), (136, 501070), (170, 400856), (178, 382840), (272, 250535), (340, 200428), (356, 191420), (445, 153136), (563, 121040), (680, 100214), (712, 95710), (890, 76568), (1126, 60520), (1360, 50107), (1424, 47855), (1513, 45040), (1780, 38284), (2252, 30260), (2815, 24208), (3026, 22520), (3560, 19142), (4504, 15130), (5630, 12104), (6052, 11260), (7120, 9571), (7565, 9008)]