80197740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{63649}}^1$

素因数の和:63671

約数の個数: 72

約数和(自身を含む): 278023200

約数和(自身を除く): 197825460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 63649, 127298, 190947, 254596, 318245, 381894, 445543, 572841, 636490, 763788, 891086, 954735, 1145682, 1272980, 1336629, 1782172, 1909470, 2227715, 2291364, 2673258, 2864205, 3818940, 4009887, 4455430, 5346516, 5728410, 6683145, 8019774, 8910860, 11456820, 13366290, 16039548, 20049435, 26732580, 40098870, 80197740]

約数ペア:

[(1, 80197740), (2, 40098870), (3, 26732580), (4, 20049435), (5, 16039548), (6, 13366290), (7, 11456820), (9, 8910860), (10, 8019774), (12, 6683145), (14, 5728410), (15, 5346516), (18, 4455430), (20, 4009887), (21, 3818940), (28, 2864205), (30, 2673258), (35, 2291364), (36, 2227715), (42, 1909470), (45, 1782172), (60, 1336629), (63, 1272980), (70, 1145682), (84, 954735), (90, 891086), (105, 763788), (126, 636490), (140, 572841), (180, 445543), (210, 381894), (252, 318245), (315, 254596), (420, 190947), (630, 127298), (1260, 63649)]