31418020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2851}}^1$

素因数の和:2908

約数の個数: 48

約数和(自身を含む): 71870400

約数和(自身を除く): 40452380

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 2204, 2755, 2851, 5510, 5702, 11020, 11404, 14255, 28510, 54169, 57020, 82679, 108338, 165358, 216676, 270845, 330716, 413395, 541690, 826790, 1083380, 1570901, 1653580, 3141802, 6283604, 7854505, 15709010, 31418020]

約数ペア:

[(1, 31418020), (2, 15709010), (4, 7854505), (5, 6283604), (10, 3141802), (19, 1653580), (20, 1570901), (29, 1083380), (38, 826790), (58, 541690), (76, 413395), (95, 330716), (116, 270845), (145, 216676), (190, 165358), (290, 108338), (380, 82679), (551, 57020), (580, 54169), (1102, 28510), (2204, 14255), (2755, 11404), (2851, 11020), (5510, 5702)]