20161794940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{42023}}^1$

素因数の和:42211

約数の個数: 96

約数和(自身を含む): 50832230400

約数和(自身を除く): 30670435460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 149, 161, 230, 298, 322, 460, 596, 644, 745, 805, 1043, 1490, 1610, 2086, 2980, 3220, 3427, 4172, 5215, 6854, 10430, 13708, 17135, 20860, 23989, 34270, 42023, 47978, 68540, 84046, 95956, 119945, 168092, 210115, 239890, 294161, 420230, 479780, 588322, 840460, 966529, 1176644, 1470805, 1933058, 2941610, 3866116, 4832645, 5883220, 6261427, 6765703, 9665290, 12522854, 13531406, 19330580, 25045708, 27062812, 31307135, 33828515, 43829989, 62614270, 67657030, 87659978, 125228540, 135314060, 144012821, 175319956, 219149945, 288025642, 438299890, 576051284, 720064105, 876599780, 1008089747, 1440128210, 2016179494, 2880256420, 4032358988, 5040448735, 10080897470, 20161794940]

約数ペア:

[(1, 20161794940), (2, 10080897470), (4, 5040448735), (5, 4032358988), (7, 2880256420), (10, 2016179494), (14, 1440128210), (20, 1008089747), (23, 876599780), (28, 720064105), (35, 576051284), (46, 438299890), (70, 288025642), (92, 219149945), (115, 175319956), (140, 144012821), (149, 135314060), (161, 125228540), (230, 87659978), (298, 67657030), (322, 62614270), (460, 43829989), (596, 33828515), (644, 31307135), (745, 27062812), (805, 25045708), (1043, 19330580), (1490, 13531406), (1610, 12522854), (2086, 9665290), (2980, 6765703), (3220, 6261427), (3427, 5883220), (4172, 4832645), (5215, 3866116), (6854, 2941610), (10430, 1933058), (13708, 1470805), (17135, 1176644), (20860, 966529), (23989, 840460), (34270, 588322), (42023, 479780), (47978, 420230), (68540, 294161), (84046, 239890), (95956, 210115), (119945, 168092)]