28827520

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1453}}^1$

素因数の和:1503

約数の個数: 64

約数和(自身を含む): 71187840

約数和(自身を除く): 42360320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1453, 1984, 2480, 2906, 3968, 4960, 5812, 7265, 9920, 11624, 14530, 19840, 23248, 29060, 45043, 46496, 58120, 90086, 92992, 116240, 180172, 185984, 225215, 232480, 360344, 450430, 464960, 720688, 900860, 929920, 1441376, 1801720, 2882752, 3603440, 5765504, 7206880, 14413760, 28827520]

約数ペア:

[(1, 28827520), (2, 14413760), (4, 7206880), (5, 5765504), (8, 3603440), (10, 2882752), (16, 1801720), (20, 1441376), (31, 929920), (32, 900860), (40, 720688), (62, 464960), (64, 450430), (80, 360344), (124, 232480), (128, 225215), (155, 185984), (160, 180172), (248, 116240), (310, 92992), (320, 90086), (496, 58120), (620, 46496), (640, 45043), (992, 29060), (1240, 23248), (1453, 19840), (1984, 14530), (2480, 11624), (2906, 9920), (3968, 7265), (4960, 5812)]