1565016820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:449

約数の個数: 96

約数和(自身を含む): 3454754688

約数和(自身を除く): 1889737868

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 157, 172, 173, 215, 268, 314, 335, 346, 430, 628, 670, 692, 785, 860, 865, 1340, 1570, 1730, 2881, 3140, 3460, 5762, 6751, 7439, 10519, 11524, 11591, 13502, 14405, 14878, 21038, 23182, 27004, 27161, 28810, 29756, 33755, 37195, 42076, 46364, 52595, 54322, 57620, 57955, 67510, 74390, 105190, 108644, 115910, 135020, 135805, 148780, 210380, 231820, 271610, 452317, 498413, 543220, 904634, 996826, 1167923, 1809268, 1819787, 1993652, 2261585, 2335846, 2492065, 3639574, 4523170, 4671692, 4984130, 5839615, 7279148, 9046340, 9098935, 9968260, 11679230, 18197870, 23358460, 36395740, 78250841, 156501682, 313003364, 391254205, 782508410, 1565016820]

約数ペア:

[(1, 1565016820), (2, 782508410), (4, 391254205), (5, 313003364), (10, 156501682), (20, 78250841), (43, 36395740), (67, 23358460), (86, 18197870), (134, 11679230), (157, 9968260), (172, 9098935), (173, 9046340), (215, 7279148), (268, 5839615), (314, 4984130), (335, 4671692), (346, 4523170), (430, 3639574), (628, 2492065), (670, 2335846), (692, 2261585), (785, 1993652), (860, 1819787), (865, 1809268), (1340, 1167923), (1570, 996826), (1730, 904634), (2881, 543220), (3140, 498413), (3460, 452317), (5762, 271610), (6751, 231820), (7439, 210380), (10519, 148780), (11524, 135805), (11591, 135020), (13502, 115910), (14405, 108644), (14878, 105190), (21038, 74390), (23182, 67510), (27004, 57955), (27161, 57620), (28810, 54322), (29756, 52595), (33755, 46364), (37195, 42076)]