28211840

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2593}}^1$

素因数の和:2629

約数の個数: 64

約数和(自身を含む): 71438760

約数和(自身を除く): 43226920

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, 2593, 2720, 5186, 5440, 10372, 10880, 12965, 20744, 25930, 41488, 44081, 51860, 82976, 88162, 103720, 165952, 176324, 207440, 220405, 331904, 352648, 414880, 440810, 705296, 829760, 881620, 1410592, 1659520, 1763240, 2821184, 3526480, 5642368, 7052960, 14105920, 28211840]

約数ペア:

[(1, 28211840), (2, 14105920), (4, 7052960), (5, 5642368), (8, 3526480), (10, 2821184), (16, 1763240), (17, 1659520), (20, 1410592), (32, 881620), (34, 829760), (40, 705296), (64, 440810), (68, 414880), (80, 352648), (85, 331904), (128, 220405), (136, 207440), (160, 176324), (170, 165952), (272, 103720), (320, 88162), (340, 82976), (544, 51860), (640, 44081), (680, 41488), (1088, 25930), (1360, 20744), (2176, 12965), (2593, 10880), (2720, 10372), (5186, 5440)]