164215380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{390989}}^1$

素因数の和:391008

約数の個数: 48

約数和(自身を含む): 525490560

約数和(自身を除く): 361275180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 390989, 781978, 1172967, 1563956, 1954945, 2345934, 2736923, 3909890, 4691868, 5473846, 5864835, 7819780, 8210769, 10947692, 11729670, 13684615, 16421538, 23459340, 27369230, 32843076, 41053845, 54738460, 82107690, 164215380]

約数ペア:

[(1, 164215380), (2, 82107690), (3, 54738460), (4, 41053845), (5, 32843076), (6, 27369230), (7, 23459340), (10, 16421538), (12, 13684615), (14, 11729670), (15, 10947692), (20, 8210769), (21, 7819780), (28, 5864835), (30, 5473846), (35, 4691868), (42, 3909890), (60, 2736923), (70, 2345934), (84, 1954945), (105, 1563956), (140, 1172967), (210, 781978), (420, 390989)]