81172728

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{953}}^1$

素因数の和:998

約数の個数: 144

約数和(自身を含む): 272347920

約数和(自身を除く): 191175192

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 28, 36, 39, 42, 52, 56, 63, 72, 78, 84, 91, 104, 117, 126, 156, 168, 169, 182, 234, 252, 273, 312, 338, 364, 468, 504, 507, 546, 676, 728, 819, 936, 953, 1014, 1092, 1183, 1352, 1521, 1638, 1906, 2028, 2184, 2366, 2859, 3042, 3276, 3549, 3812, 4056, 4732, 5718, 6084, 6552, 6671, 7098, 7624, 8577, 9464, 10647, 11436, 12168, 12389, 13342, 14196, 17154, 20013, 21294, 22872, 24778, 26684, 28392, 34308, 37167, 40026, 42588, 49556, 53368, 60039, 68616, 74334, 80052, 85176, 86723, 99112, 111501, 120078, 148668, 160104, 161057, 173446, 223002, 240156, 260169, 297336, 322114, 346892, 446004, 480312, 483171, 520338, 644228, 693784, 780507, 892008, 966342, 1040676, 1127399, 1288456, 1449513, 1561014, 1932684, 2081352, 2254798, 2899026, 3122028, 3382197, 3865368, 4509596, 5798052, 6244056, 6764394, 9019192, 10146591, 11596104, 13528788, 20293182, 27057576, 40586364, 81172728]

約数ペア:

[(1, 81172728), (2, 40586364), (3, 27057576), (4, 20293182), (6, 13528788), (7, 11596104), (8, 10146591), (9, 9019192), (12, 6764394), (13, 6244056), (14, 5798052), (18, 4509596), (21, 3865368), (24, 3382197), (26, 3122028), (28, 2899026), (36, 2254798), (39, 2081352), (42, 1932684), (52, 1561014), (56, 1449513), (63, 1288456), (72, 1127399), (78, 1040676), (84, 966342), (91, 892008), (104, 780507), (117, 693784), (126, 644228), (156, 520338), (168, 483171), (169, 480312), (182, 446004), (234, 346892), (252, 322114), (273, 297336), (312, 260169), (338, 240156), (364, 223002), (468, 173446), (504, 161057), (507, 160104), (546, 148668), (676, 120078), (728, 111501), (819, 99112), (936, 86723), (953, 85176), (1014, 80052), (1092, 74334), (1183, 68616), (1352, 60039), (1521, 53368), (1638, 49556), (1906, 42588), (2028, 40026), (2184, 37167), (2366, 34308), (2859, 28392), (3042, 26684), (3276, 24778), (3549, 22872), (3812, 21294), (4056, 20013), (4732, 17154), (5718, 14196), (6084, 13342), (6552, 12389), (6671, 12168), (7098, 11436), (7624, 10647), (8577, 9464)]