81528636

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:415

約数の個数: 96

約数和(自身を含む): 227082240

約数和(自身を除く): 145553604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 131, 186, 217, 239, 262, 372, 393, 434, 478, 524, 651, 717, 786, 868, 917, 956, 1302, 1434, 1572, 1673, 1834, 2604, 2751, 2868, 3346, 3668, 4061, 5019, 5502, 6692, 7409, 8122, 10038, 11004, 12183, 14818, 16244, 20076, 22227, 24366, 28427, 29636, 31309, 44454, 48732, 51863, 56854, 62618, 85281, 88908, 93927, 103726, 113708, 125236, 155589, 170562, 187854, 207452, 219163, 311178, 341124, 375708, 438326, 622356, 657489, 876652, 970579, 1314978, 1941158, 2629956, 2911737, 3882316, 5823474, 6794053, 11646948, 13588106, 20382159, 27176212, 40764318, 81528636]

約数ペア:

[(1, 81528636), (2, 40764318), (3, 27176212), (4, 20382159), (6, 13588106), (7, 11646948), (12, 6794053), (14, 5823474), (21, 3882316), (28, 2911737), (31, 2629956), (42, 1941158), (62, 1314978), (84, 970579), (93, 876652), (124, 657489), (131, 622356), (186, 438326), (217, 375708), (239, 341124), (262, 311178), (372, 219163), (393, 207452), (434, 187854), (478, 170562), (524, 155589), (651, 125236), (717, 113708), (786, 103726), (868, 93927), (917, 88908), (956, 85281), (1302, 62618), (1434, 56854), (1572, 51863), (1673, 48732), (1834, 44454), (2604, 31309), (2751, 29636), (2868, 28427), (3346, 24366), (3668, 22227), (4061, 20076), (5019, 16244), (5502, 14818), (6692, 12183), (7409, 11004), (8122, 10038)]