28929920

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2659}}^1$

素因数の和:2695

約数の個数: 64

約数和(自身を含む): 73256400

約数和(自身を除く): 44326480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2659, 2720, 5318, 5440, 10636, 10880, 13295, 21272, 26590, 42544, 45203, 53180, 85088, 90406, 106360, 170176, 180812, 212720, 226015, 340352, 361624, 425440, 452030, 723248, 850880, 904060, 1446496, 1701760, 1808120, 2892992, 3616240, 5785984, 7232480, 14464960, 28929920]

約数ペア:

[(1, 28929920), (2, 14464960), (4, 7232480), (5, 5785984), (8, 3616240), (10, 2892992), (16, 1808120), (17, 1701760), (20, 1446496), (32, 904060), (34, 850880), (40, 723248), (64, 452030), (68, 425440), (80, 361624), (85, 340352), (128, 226015), (136, 212720), (160, 180812), (170, 170176), (272, 106360), (320, 90406), (340, 85088), (544, 53180), (640, 45203), (680, 42544), (1088, 26590), (1360, 21272), (2176, 13295), (2659, 10880), (2720, 10636), (5318, 5440)]