209394770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 422682624

約数和(自身を除く): 213287854

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 223, 233, 310, 403, 446, 466, 806, 1115, 1165, 2015, 2230, 2330, 2899, 3029, 4030, 5798, 6058, 6913, 7223, 13826, 14446, 14495, 15145, 28990, 30290, 34565, 36115, 51959, 69130, 72230, 89869, 93899, 103918, 179738, 187798, 259795, 449345, 469495, 519590, 675467, 898690, 938990, 1350934, 1610729, 3221458, 3377335, 6754670, 8053645, 16107290, 20939477, 41878954, 104697385, 209394770]

約数ペア:

[(1, 209394770), (2, 104697385), (5, 41878954), (10, 20939477), (13, 16107290), (26, 8053645), (31, 6754670), (62, 3377335), (65, 3221458), (130, 1610729), (155, 1350934), (223, 938990), (233, 898690), (310, 675467), (403, 519590), (446, 469495), (466, 449345), (806, 259795), (1115, 187798), (1165, 179738), (2015, 103918), (2230, 93899), (2330, 89869), (2899, 72230), (3029, 69130), (4030, 51959), (5798, 36115), (6058, 34565), (6913, 30290), (7223, 28990), (13826, 15145), (14446, 14495)]