81557112

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:485

約数の個数: 128

約数和(自身を含む): 254016000

約数和(自身を除く): 172458888

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 107, 156, 168, 182, 214, 273, 312, 321, 349, 364, 428, 546, 642, 698, 728, 749, 856, 1047, 1092, 1284, 1391, 1396, 1498, 2094, 2184, 2247, 2443, 2568, 2782, 2792, 2996, 4173, 4188, 4494, 4537, 4886, 5564, 5992, 7329, 8346, 8376, 8988, 9074, 9737, 9772, 11128, 13611, 14658, 16692, 17976, 18148, 19474, 19544, 27222, 29211, 29316, 31759, 33384, 36296, 37343, 38948, 54444, 58422, 58632, 63518, 74686, 77896, 95277, 108888, 112029, 116844, 127036, 149372, 190554, 224058, 233688, 254072, 261401, 298744, 381108, 448116, 485459, 522802, 762216, 784203, 896232, 970918, 1045604, 1456377, 1568406, 1941836, 2091208, 2912754, 3136812, 3398213, 3883672, 5825508, 6273624, 6796426, 10194639, 11651016, 13592852, 20389278, 27185704, 40778556, 81557112]

約数ペア:

[(1, 81557112), (2, 40778556), (3, 27185704), (4, 20389278), (6, 13592852), (7, 11651016), (8, 10194639), (12, 6796426), (13, 6273624), (14, 5825508), (21, 3883672), (24, 3398213), (26, 3136812), (28, 2912754), (39, 2091208), (42, 1941836), (52, 1568406), (56, 1456377), (78, 1045604), (84, 970918), (91, 896232), (104, 784203), (107, 762216), (156, 522802), (168, 485459), (182, 448116), (214, 381108), (273, 298744), (312, 261401), (321, 254072), (349, 233688), (364, 224058), (428, 190554), (546, 149372), (642, 127036), (698, 116844), (728, 112029), (749, 108888), (856, 95277), (1047, 77896), (1092, 74686), (1284, 63518), (1391, 58632), (1396, 58422), (1498, 54444), (2094, 38948), (2184, 37343), (2247, 36296), (2443, 33384), (2568, 31759), (2782, 29316), (2792, 29211), (2996, 27222), (4173, 19544), (4188, 19474), (4494, 18148), (4537, 17976), (4886, 16692), (5564, 14658), (5992, 13611), (7329, 11128), (8346, 9772), (8376, 9737), (8988, 9074)]