18595220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{419}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 44876160

約数和(自身を除く): 26280940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 317, 419, 634, 838, 1268, 1585, 1676, 2095, 2219, 2933, 3170, 4190, 4438, 5866, 6340, 8380, 8876, 11095, 11732, 14665, 22190, 29330, 44380, 58660, 132823, 265646, 531292, 664115, 929761, 1328230, 1859522, 2656460, 3719044, 4648805, 9297610, 18595220]

約数ペア:

[(1, 18595220), (2, 9297610), (4, 4648805), (5, 3719044), (7, 2656460), (10, 1859522), (14, 1328230), (20, 929761), (28, 664115), (35, 531292), (70, 265646), (140, 132823), (317, 58660), (419, 44380), (634, 29330), (838, 22190), (1268, 14665), (1585, 11732), (1676, 11095), (2095, 8876), (2219, 8380), (2933, 6340), (3170, 5866), (4190, 4438)]