72183890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1999}}^1$

素因数の和:2186

約数の個数: 32

約数和(自身を含む): 136512000

約数和(自身を除く): 64328110

約数列:

[1, 2, 5, 10, 23, 46, 115, 157, 230, 314, 785, 1570, 1999, 3611, 3998, 7222, 9995, 18055, 19990, 36110, 45977, 91954, 229885, 313843, 459770, 627686, 1569215, 3138430, 7218389, 14436778, 36091945, 72183890]

約数ペア:

[(1, 72183890), (2, 36091945), (5, 14436778), (10, 7218389), (23, 3138430), (46, 1569215), (115, 627686), (157, 459770), (230, 313843), (314, 229885), (785, 91954), (1570, 45977), (1999, 36110), (3611, 19990), (3998, 18055), (7222, 9995)]