80271770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 158630400

約数和(自身を除く): 78358630

約数列:

[1, 2, 5, 10, 19, 38, 47, 89, 94, 95, 101, 178, 190, 202, 235, 445, 470, 505, 890, 893, 1010, 1691, 1786, 1919, 3382, 3838, 4183, 4465, 4747, 8366, 8455, 8930, 8989, 9494, 9595, 16910, 17978, 19190, 20915, 23735, 41830, 44945, 47470, 79477, 89890, 90193, 158954, 170791, 180386, 341582, 397385, 422483, 450965, 794770, 844966, 853955, 901930, 1707910, 2112415, 4224830, 8027177, 16054354, 40135885, 80271770]

約数ペア:

[(1, 80271770), (2, 40135885), (5, 16054354), (10, 8027177), (19, 4224830), (38, 2112415), (47, 1707910), (89, 901930), (94, 853955), (95, 844966), (101, 794770), (178, 450965), (190, 422483), (202, 397385), (235, 341582), (445, 180386), (470, 170791), (505, 158954), (890, 90193), (893, 89890), (1010, 79477), (1691, 47470), (1786, 44945), (1919, 41830), (3382, 23735), (3838, 20915), (4183, 19190), (4465, 17978), (4747, 16910), (8366, 9595), (8455, 9494), (8930, 8989)]