207455885

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 319334400

約数和(自身を除く): 111878515

約数列:

[1, 5, 7, 13, 35, 47, 65, 89, 91, 109, 235, 329, 445, 455, 545, 611, 623, 763, 1157, 1417, 1645, 3055, 3115, 3815, 4183, 4277, 5123, 5785, 7085, 8099, 9701, 9919, 20915, 21385, 25615, 29281, 35861, 40495, 48505, 49595, 54379, 66599, 67907, 126113, 146405, 179305, 271895, 332995, 339535, 380653, 455947, 466193, 630565, 882791, 1903265, 2279735, 2330965, 3191629, 4413955, 5927311, 15958145, 29636555, 41491177, 207455885]

約数ペア:

[(1, 207455885), (5, 41491177), (7, 29636555), (13, 15958145), (35, 5927311), (47, 4413955), (65, 3191629), (89, 2330965), (91, 2279735), (109, 1903265), (235, 882791), (329, 630565), (445, 466193), (455, 455947), (545, 380653), (611, 339535), (623, 332995), (763, 271895), (1157, 179305), (1417, 146405), (1645, 126113), (3055, 67907), (3115, 66599), (3815, 54379), (4183, 49595), (4277, 48505), (5123, 40495), (5785, 35861), (7085, 29281), (8099, 25615), (9701, 21385), (9919, 20915)]