28744960

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1321}}^1$

素因数の和:1359

約数の個数: 72

約数和(自身を含む): 72958536

約数和(自身を除く): 44213576

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1321, 1360, 2176, 2642, 2720, 4352, 5284, 5440, 6605, 10568, 10880, 13210, 21136, 21760, 22457, 26420, 42272, 44914, 52840, 84544, 89828, 105680, 112285, 169088, 179656, 211360, 224570, 338176, 359312, 422720, 449140, 718624, 845440, 898280, 1437248, 1690880, 1796560, 2874496, 3593120, 5748992, 7186240, 14372480, 28744960]

約数ペア:

[(1, 28744960), (2, 14372480), (4, 7186240), (5, 5748992), (8, 3593120), (10, 2874496), (16, 1796560), (17, 1690880), (20, 1437248), (32, 898280), (34, 845440), (40, 718624), (64, 449140), (68, 422720), (80, 359312), (85, 338176), (128, 224570), (136, 211360), (160, 179656), (170, 169088), (256, 112285), (272, 105680), (320, 89828), (340, 84544), (544, 52840), (640, 44914), (680, 42272), (1088, 26420), (1280, 22457), (1321, 21760), (1360, 21136), (2176, 13210), (2642, 10880), (2720, 10568), (4352, 6605), (5284, 5440)]