19765690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 42674688

約数和(自身を除く): 22908998

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 71, 82, 97, 142, 194, 205, 287, 355, 410, 485, 497, 574, 679, 710, 970, 994, 1358, 1435, 2485, 2870, 2911, 3395, 3977, 4970, 5822, 6790, 6887, 7954, 13774, 14555, 19885, 20377, 27839, 29110, 34435, 39770, 40754, 48209, 55678, 68870, 96418, 101885, 139195, 203770, 241045, 278390, 282367, 482090, 564734, 1411835, 1976569, 2823670, 3953138, 9882845, 19765690]

約数ペア:

[(1, 19765690), (2, 9882845), (5, 3953138), (7, 2823670), (10, 1976569), (14, 1411835), (35, 564734), (41, 482090), (70, 282367), (71, 278390), (82, 241045), (97, 203770), (142, 139195), (194, 101885), (205, 96418), (287, 68870), (355, 55678), (410, 48209), (485, 40754), (497, 39770), (574, 34435), (679, 29110), (710, 27839), (970, 20377), (994, 19885), (1358, 14555), (1435, 13774), (2485, 7954), (2870, 6887), (2911, 6790), (3395, 5822), (3977, 4970)]