7896980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4339}}^1$

素因数の和:4368

約数の個数: 48

約数和(自身を含む): 20415360

約数和(自身を除く): 12518380

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 4339, 8678, 17356, 21695, 30373, 43390, 56407, 60746, 86780, 112814, 121492, 151865, 225628, 282035, 303730, 394849, 564070, 607460, 789698, 1128140, 1579396, 1974245, 3948490, 7896980]

約数ペア:

[(1, 7896980), (2, 3948490), (4, 1974245), (5, 1579396), (7, 1128140), (10, 789698), (13, 607460), (14, 564070), (20, 394849), (26, 303730), (28, 282035), (35, 225628), (52, 151865), (65, 121492), (70, 112814), (91, 86780), (130, 60746), (140, 56407), (182, 43390), (260, 30373), (364, 21695), (455, 17356), (910, 8678), (1820, 4339)]