19400380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{401}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 42547680

約数和(自身を除く): 23147300

約数列:

[1, 2, 4, 5, 10, 20, 41, 59, 82, 118, 164, 205, 236, 295, 401, 410, 590, 802, 820, 1180, 1604, 2005, 2419, 4010, 4838, 8020, 9676, 12095, 16441, 23659, 24190, 32882, 47318, 48380, 65764, 82205, 94636, 118295, 164410, 236590, 328820, 473180, 970019, 1940038, 3880076, 4850095, 9700190, 19400380]

約数ペア:

[(1, 19400380), (2, 9700190), (4, 4850095), (5, 3880076), (10, 1940038), (20, 970019), (41, 473180), (59, 328820), (82, 236590), (118, 164410), (164, 118295), (205, 94636), (236, 82205), (295, 65764), (401, 48380), (410, 47318), (590, 32882), (802, 24190), (820, 23659), (1180, 16441), (1604, 12095), (2005, 9676), (2419, 8020), (4010, 4838)]