81998680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4691}}^1$

素因数の和:4744

約数の個数: 64

約数和(自身を含む): 202694400

約数和(自身を除く): 120695720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 380, 437, 460, 760, 874, 920, 1748, 2185, 3496, 4370, 4691, 8740, 9382, 17480, 18764, 23455, 37528, 46910, 89129, 93820, 107893, 178258, 187640, 215786, 356516, 431572, 445645, 539465, 713032, 863144, 891290, 1078930, 1782580, 2049967, 2157860, 3565160, 4099934, 4315720, 8199868, 10249835, 16399736, 20499670, 40999340, 81998680]

約数ペア:

[(1, 81998680), (2, 40999340), (4, 20499670), (5, 16399736), (8, 10249835), (10, 8199868), (19, 4315720), (20, 4099934), (23, 3565160), (38, 2157860), (40, 2049967), (46, 1782580), (76, 1078930), (92, 891290), (95, 863144), (115, 713032), (152, 539465), (184, 445645), (190, 431572), (230, 356516), (380, 215786), (437, 187640), (460, 178258), (760, 107893), (874, 93820), (920, 89129), (1748, 46910), (2185, 37528), (3496, 23455), (4370, 18764), (4691, 17480), (8740, 9382)]