639421145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{503}}^1\times {\mathrm{797}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 868734720

約数和(自身を除く): 229313575

約数列:

[1, 5, 11, 29, 55, 145, 319, 503, 797, 1595, 2515, 3985, 5533, 8767, 14587, 23113, 27665, 43835, 72935, 115565, 160457, 254243, 400891, 802285, 1271215, 2004455, 4409801, 11625839, 22049005, 58129195, 127884229, 639421145]

約数ペア:

[(1, 639421145), (5, 127884229), (11, 58129195), (29, 22049005), (55, 11625839), (145, 4409801), (319, 2004455), (503, 1271215), (797, 802285), (1595, 400891), (2515, 254243), (3985, 160457), (5533, 115565), (8767, 72935), (14587, 43835), (23113, 27665)]