28403550

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:223

約数の個数: 144

約数和(自身を含む): 89137152

約数和(自身を除く): 60733602

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 71, 75, 90, 105, 126, 127, 142, 150, 175, 210, 213, 225, 254, 315, 350, 355, 381, 426, 450, 497, 525, 630, 635, 639, 710, 762, 889, 994, 1050, 1065, 1143, 1270, 1278, 1491, 1575, 1775, 1778, 1905, 2130, 2286, 2485, 2667, 2982, 3150, 3175, 3195, 3550, 3810, 4445, 4473, 4970, 5325, 5334, 5715, 6350, 6390, 7455, 8001, 8890, 8946, 9017, 9525, 10650, 11430, 12425, 13335, 14910, 15975, 16002, 18034, 19050, 22225, 22365, 24850, 26670, 27051, 28575, 31950, 37275, 40005, 44450, 44730, 45085, 54102, 57150, 63119, 66675, 74550, 80010, 81153, 90170, 111825, 126238, 133350, 135255, 162306, 189357, 200025, 223650, 225425, 270510, 315595, 378714, 400050, 405765, 450850, 568071, 631190, 676275, 811530, 946785, 1136142, 1352550, 1577975, 1893570, 2028825, 2840355, 3155950, 4057650, 4733925, 5680710, 9467850, 14201775, 28403550]

約数ペア:

[(1, 28403550), (2, 14201775), (3, 9467850), (5, 5680710), (6, 4733925), (7, 4057650), (9, 3155950), (10, 2840355), (14, 2028825), (15, 1893570), (18, 1577975), (21, 1352550), (25, 1136142), (30, 946785), (35, 811530), (42, 676275), (45, 631190), (50, 568071), (63, 450850), (70, 405765), (71, 400050), (75, 378714), (90, 315595), (105, 270510), (126, 225425), (127, 223650), (142, 200025), (150, 189357), (175, 162306), (210, 135255), (213, 133350), (225, 126238), (254, 111825), (315, 90170), (350, 81153), (355, 80010), (381, 74550), (426, 66675), (450, 63119), (497, 57150), (525, 54102), (630, 45085), (635, 44730), (639, 44450), (710, 40005), (762, 37275), (889, 31950), (994, 28575), (1050, 27051), (1065, 26670), (1143, 24850), (1270, 22365), (1278, 22225), (1491, 19050), (1575, 18034), (1775, 16002), (1778, 15975), (1905, 14910), (2130, 13335), (2286, 12425), (2485, 11430), (2667, 10650), (2982, 9525), (3150, 9017), (3175, 8946), (3195, 8890), (3550, 8001), (3810, 7455), (4445, 6390), (4473, 6350), (4970, 5715), (5325, 5334)]