210974725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 293981184

約数和(自身を除く): 83006459

約数列:

[1, 5, 13, 25, 41, 65, 71, 205, 223, 325, 355, 533, 923, 1025, 1115, 1775, 2665, 2899, 2911, 4615, 5575, 9143, 13325, 14495, 14555, 15833, 23075, 37843, 45715, 72475, 72775, 79165, 118859, 189215, 205829, 228575, 395825, 594295, 649153, 946075, 1029145, 2971475, 3245765, 5145725, 8438989, 16228825, 42194945, 210974725]

約数ペア:

[(1, 210974725), (5, 42194945), (13, 16228825), (25, 8438989), (41, 5145725), (65, 3245765), (71, 2971475), (205, 1029145), (223, 946075), (325, 649153), (355, 594295), (533, 395825), (923, 228575), (1025, 205829), (1115, 189215), (1775, 118859), (2665, 79165), (2899, 72775), (2911, 72475), (4615, 45715), (5575, 37843), (9143, 23075), (13325, 15833), (14495, 14555)]