165015820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{541}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 352933056

約数和(自身を除く): 187917236

約数列:

[1, 2, 4, 5, 10, 20, 101, 151, 202, 302, 404, 505, 541, 604, 755, 1010, 1082, 1510, 2020, 2164, 2705, 3020, 5410, 10820, 15251, 30502, 54641, 61004, 76255, 81691, 109282, 152510, 163382, 218564, 273205, 305020, 326764, 408455, 546410, 816910, 1092820, 1633820, 8250791, 16501582, 33003164, 41253955, 82507910, 165015820]

約数ペア:

[(1, 165015820), (2, 82507910), (4, 41253955), (5, 33003164), (10, 16501582), (20, 8250791), (101, 1633820), (151, 1092820), (202, 816910), (302, 546410), (404, 408455), (505, 326764), (541, 305020), (604, 273205), (755, 218564), (1010, 163382), (1082, 152510), (1510, 109282), (2020, 81691), (2164, 76255), (2705, 61004), (3020, 54641), (5410, 30502), (10820, 15251)]