20185980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17707}}^1$

素因数の和:17738

約数の個数: 48

約数和(自身を含む): 59498880

約数和(自身を除く): 39312900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17707, 35414, 53121, 70828, 88535, 106242, 177070, 212484, 265605, 336433, 354140, 531210, 672866, 1009299, 1062420, 1345732, 1682165, 2018598, 3364330, 4037196, 5046495, 6728660, 10092990, 20185980]

約数ペア:

[(1, 20185980), (2, 10092990), (3, 6728660), (4, 5046495), (5, 4037196), (6, 3364330), (10, 2018598), (12, 1682165), (15, 1345732), (19, 1062420), (20, 1009299), (30, 672866), (38, 531210), (57, 354140), (60, 336433), (76, 265605), (95, 212484), (114, 177070), (190, 106242), (228, 88535), (285, 70828), (380, 53121), (570, 35414), (1140, 17707)]