81884240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60209}}^1$

素因数の和:60239

約数の個数: 40

約数和(自身を含む): 201583080

約数和(自身を除く): 119698840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 60209, 120418, 240836, 301045, 481672, 602090, 963344, 1023553, 1204180, 2047106, 2408360, 4094212, 4816720, 5117765, 8188424, 10235530, 16376848, 20471060, 40942120, 81884240]

約数ペア:

[(1, 81884240), (2, 40942120), (4, 20471060), (5, 16376848), (8, 10235530), (10, 8188424), (16, 5117765), (17, 4816720), (20, 4094212), (34, 2408360), (40, 2047106), (68, 1204180), (80, 1023553), (85, 963344), (136, 602090), (170, 481672), (272, 301045), (340, 240836), (680, 120418), (1360, 60209)]