250991390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^2\times {\mathrm{383}}^1$

素因数の和:545

約数の個数: 48

約数和(自身を含む): 494774784

約数和(自身を除く): 243783394

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 383, 710, 766, 923, 1846, 1915, 3830, 4615, 4979, 5041, 9230, 9958, 10082, 24895, 25205, 27193, 49790, 50410, 54386, 65533, 131066, 135965, 271930, 327665, 353509, 655330, 707018, 1767545, 1930703, 3535090, 3861406, 9653515, 19307030, 25099139, 50198278, 125495695, 250991390]

約数ペア:

[(1, 250991390), (2, 125495695), (5, 50198278), (10, 25099139), (13, 19307030), (26, 9653515), (65, 3861406), (71, 3535090), (130, 1930703), (142, 1767545), (355, 707018), (383, 655330), (710, 353509), (766, 327665), (923, 271930), (1846, 135965), (1915, 131066), (3830, 65533), (4615, 54386), (4979, 50410), (5041, 49790), (9230, 27193), (9958, 25205), (10082, 24895)]