19726910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:465

約数の個数: 48

約数和(自身を含む): 41762304

約数和(自身を除く): 22035394

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 127, 245, 254, 317, 490, 634, 635, 889, 1270, 1585, 1778, 2219, 3170, 4438, 4445, 6223, 8890, 11095, 12446, 15533, 22190, 31066, 31115, 40259, 62230, 77665, 80518, 155330, 201295, 281813, 402590, 563626, 1409065, 1972691, 2818130, 3945382, 9863455, 19726910]

約数ペア:

[(1, 19726910), (2, 9863455), (5, 3945382), (7, 2818130), (10, 1972691), (14, 1409065), (35, 563626), (49, 402590), (70, 281813), (98, 201295), (127, 155330), (245, 80518), (254, 77665), (317, 62230), (490, 40259), (634, 31115), (635, 31066), (889, 22190), (1270, 15533), (1585, 12446), (1778, 11095), (2219, 8890), (3170, 6223), (4438, 4445)]