20161191255

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1\times {\mathrm{977}}^1$

素因数の和:1396

約数の個数: 64

約数和(自身を含む): 33355214208

約数和(自身を除く): 13194022953

約数列:

[1, 3, 5, 15, 53, 101, 159, 257, 265, 303, 505, 771, 795, 977, 1285, 1515, 2931, 3855, 4885, 5353, 13621, 14655, 16059, 25957, 26765, 40863, 51781, 68105, 77871, 80295, 98677, 129785, 155343, 204315, 251089, 258905, 296031, 389355, 493385, 753267, 776715, 1255445, 1375721, 1480155, 3766335, 4127163, 5229881, 6878605, 13307717, 15689643, 20635815, 25359989, 26149405, 39923151, 66538585, 76079967, 78448215, 126799945, 199615755, 380399835, 1344079417, 4032238251, 6720397085, 20161191255]

約数ペア:

[(1, 20161191255), (3, 6720397085), (5, 4032238251), (15, 1344079417), (53, 380399835), (101, 199615755), (159, 126799945), (257, 78448215), (265, 76079967), (303, 66538585), (505, 39923151), (771, 26149405), (795, 25359989), (977, 20635815), (1285, 15689643), (1515, 13307717), (2931, 6878605), (3855, 5229881), (4885, 4127163), (5353, 3766335), (13621, 1480155), (14655, 1375721), (16059, 1255445), (25957, 776715), (26765, 753267), (40863, 493385), (51781, 389355), (68105, 296031), (77871, 258905), (80295, 251089), (98677, 204315), (129785, 155343)]