889553665

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1997}}^1$

素因数の和:2122

約数の個数: 64

約数和(自身を含む): 1450068480

約数和(自身を除く): 560514815

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 89, 91, 143, 385, 445, 455, 623, 715, 979, 1001, 1157, 1997, 3115, 4895, 5005, 5785, 6853, 8099, 9985, 12727, 13979, 21967, 25961, 34265, 40495, 63635, 69895, 89089, 109835, 129805, 153769, 177733, 181727, 285571, 445445, 768845, 888665, 908635, 1244131, 1427855, 1955063, 1998997, 2310529, 6220655, 9775315, 9994985, 11552645, 13685441, 16173703, 25415819, 68427205, 80868515, 127079095, 177910733, 889553665]

約数ペア:

[(1, 889553665), (5, 177910733), (7, 127079095), (11, 80868515), (13, 68427205), (35, 25415819), (55, 16173703), (65, 13685441), (77, 11552645), (89, 9994985), (91, 9775315), (143, 6220655), (385, 2310529), (445, 1998997), (455, 1955063), (623, 1427855), (715, 1244131), (979, 908635), (1001, 888665), (1157, 768845), (1997, 445445), (3115, 285571), (4895, 181727), (5005, 177733), (5785, 153769), (6853, 129805), (8099, 109835), (9985, 89089), (12727, 69895), (13979, 63635), (21967, 40495), (25961, 34265)]