81856845

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:184

約数の個数: 128

約数和(自身を含む): 180633600

約数和(自身を除く): 98776755

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 47, 57, 63, 95, 97, 105, 133, 135, 141, 171, 189, 235, 285, 291, 315, 329, 399, 423, 485, 513, 665, 679, 705, 855, 873, 893, 945, 987, 1197, 1269, 1455, 1645, 1843, 1995, 2037, 2115, 2565, 2619, 2679, 2961, 3395, 3591, 4365, 4465, 4559, 4935, 5529, 5985, 6111, 6251, 6345, 8037, 8883, 9215, 10185, 12901, 13095, 13395, 13677, 14805, 16587, 17955, 18333, 18753, 22795, 24111, 27645, 30555, 31255, 31913, 38703, 40185, 41031, 44415, 49761, 56259, 64505, 68385, 82935, 86621, 91665, 93765, 95739, 116109, 120555, 123093, 159565, 168777, 193515, 205155, 248805, 259863, 281295, 287217, 348327, 433105, 478695, 580545, 606347, 615465, 779589, 843885, 861651, 1299315, 1436085, 1741635, 1819041, 2338767, 3031735, 3897945, 4308255, 5457123, 9095205, 11693835, 16371369, 27285615, 81856845]

約数ペア:

[(1, 81856845), (3, 27285615), (5, 16371369), (7, 11693835), (9, 9095205), (15, 5457123), (19, 4308255), (21, 3897945), (27, 3031735), (35, 2338767), (45, 1819041), (47, 1741635), (57, 1436085), (63, 1299315), (95, 861651), (97, 843885), (105, 779589), (133, 615465), (135, 606347), (141, 580545), (171, 478695), (189, 433105), (235, 348327), (285, 287217), (291, 281295), (315, 259863), (329, 248805), (399, 205155), (423, 193515), (485, 168777), (513, 159565), (665, 123093), (679, 120555), (705, 116109), (855, 95739), (873, 93765), (893, 91665), (945, 86621), (987, 82935), (1197, 68385), (1269, 64505), (1455, 56259), (1645, 49761), (1843, 44415), (1995, 41031), (2037, 40185), (2115, 38703), (2565, 31913), (2619, 31255), (2679, 30555), (2961, 27645), (3395, 24111), (3591, 22795), (4365, 18753), (4465, 18333), (4559, 17955), (4935, 16587), (5529, 14805), (5985, 13677), (6111, 13395), (6251, 13095), (6345, 12901), (8037, 10185), (8883, 9215)]