28708260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2357}}^1$

素因数の和:2405

約数の個数: 96

約数和(自身を含む): 95074560

約数和(自身を除く): 66366300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1740, 2030, 2357, 2436, 3045, 4060, 4714, 6090, 7071, 9428, 11785, 12180, 14142, 16499, 23570, 28284, 32998, 35355, 47140, 49497, 65996, 68353, 70710, 82495, 98994, 136706, 141420, 164990, 197988, 205059, 247485, 273412, 329980, 341765, 410118, 478471, 494970, 683530, 820236, 956942, 989940, 1025295, 1367060, 1435413, 1913884, 2050590, 2392355, 2870826, 4101180, 4784710, 5741652, 7177065, 9569420, 14354130, 28708260]

約数ペア:

[(1, 28708260), (2, 14354130), (3, 9569420), (4, 7177065), (5, 5741652), (6, 4784710), (7, 4101180), (10, 2870826), (12, 2392355), (14, 2050590), (15, 1913884), (20, 1435413), (21, 1367060), (28, 1025295), (29, 989940), (30, 956942), (35, 820236), (42, 683530), (58, 494970), (60, 478471), (70, 410118), (84, 341765), (87, 329980), (105, 273412), (116, 247485), (140, 205059), (145, 197988), (174, 164990), (203, 141420), (210, 136706), (290, 98994), (348, 82495), (406, 70710), (420, 68353), (435, 65996), (580, 49497), (609, 47140), (812, 35355), (870, 32998), (1015, 28284), (1218, 23570), (1740, 16499), (2030, 14142), (2357, 12180), (2436, 11785), (3045, 9428), (4060, 7071), (4714, 6090)]