1645544020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{105619}}^1$

素因数の和:105688

約数の個数: 48

約数和(自身を含む): 3726273600

約数和(自身を除く): 2080729580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 105619, 211238, 422476, 528095, 1056190, 2006761, 2112380, 4013522, 4330379, 8027044, 8660758, 10033805, 17321516, 20067610, 21651895, 40135220, 43303790, 82277201, 86607580, 164554402, 329108804, 411386005, 822772010, 1645544020]

約数ペア:

[(1, 1645544020), (2, 822772010), (4, 411386005), (5, 329108804), (10, 164554402), (19, 86607580), (20, 82277201), (38, 43303790), (41, 40135220), (76, 21651895), (82, 20067610), (95, 17321516), (164, 10033805), (190, 8660758), (205, 8027044), (380, 4330379), (410, 4013522), (779, 2112380), (820, 2006761), (1558, 1056190), (3116, 528095), (3895, 422476), (7790, 211238), (15580, 105619)]