81988452

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{863}}^1$

素因数の和:922

約数の個数: 144

約数和(自身を含む): 264176640

約数和(自身を除く): 182188188

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 29, 36, 39, 42, 52, 58, 63, 78, 84, 87, 91, 116, 117, 126, 156, 174, 182, 203, 234, 252, 261, 273, 348, 364, 377, 406, 468, 522, 546, 609, 754, 812, 819, 863, 1044, 1092, 1131, 1218, 1508, 1638, 1726, 1827, 2262, 2436, 2589, 2639, 3276, 3393, 3452, 3654, 4524, 5178, 5278, 6041, 6786, 7308, 7767, 7917, 10356, 10556, 11219, 12082, 13572, 15534, 15834, 18123, 22438, 23751, 24164, 25027, 31068, 31668, 33657, 36246, 44876, 47502, 50054, 54369, 67314, 72492, 75081, 78533, 95004, 100108, 100971, 108738, 134628, 150162, 157066, 175189, 201942, 217476, 225243, 235599, 300324, 314132, 325351, 350378, 403884, 450486, 471198, 525567, 650702, 700756, 706797, 900972, 942396, 976053, 1051134, 1301404, 1413594, 1576701, 1952106, 2102268, 2277457, 2827188, 2928159, 3153402, 3904212, 4554914, 5856318, 6306804, 6832371, 9109828, 11712636, 13664742, 20497113, 27329484, 40994226, 81988452]

約数ペア:

[(1, 81988452), (2, 40994226), (3, 27329484), (4, 20497113), (6, 13664742), (7, 11712636), (9, 9109828), (12, 6832371), (13, 6306804), (14, 5856318), (18, 4554914), (21, 3904212), (26, 3153402), (28, 2928159), (29, 2827188), (36, 2277457), (39, 2102268), (42, 1952106), (52, 1576701), (58, 1413594), (63, 1301404), (78, 1051134), (84, 976053), (87, 942396), (91, 900972), (116, 706797), (117, 700756), (126, 650702), (156, 525567), (174, 471198), (182, 450486), (203, 403884), (234, 350378), (252, 325351), (261, 314132), (273, 300324), (348, 235599), (364, 225243), (377, 217476), (406, 201942), (468, 175189), (522, 157066), (546, 150162), (609, 134628), (754, 108738), (812, 100971), (819, 100108), (863, 95004), (1044, 78533), (1092, 75081), (1131, 72492), (1218, 67314), (1508, 54369), (1638, 50054), (1726, 47502), (1827, 44876), (2262, 36246), (2436, 33657), (2589, 31668), (2639, 31068), (3276, 25027), (3393, 24164), (3452, 23751), (3654, 22438), (4524, 18123), (5178, 15834), (5278, 15534), (6041, 13572), (6786, 12082), (7308, 11219), (7767, 10556), (7917, 10356)]