28206400

素因数分解:

$2^6\times 5^2\times {\mathrm{17}}^2\times {\mathrm{61}}^1$

素因数の和:117

約数の個数: 126

約数和(自身を含む): 74936858

約数和(自身を除く): 46730458

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 61, 64, 68, 80, 85, 100, 122, 136, 160, 170, 200, 244, 272, 289, 305, 320, 340, 400, 425, 488, 544, 578, 610, 680, 800, 850, 976, 1037, 1088, 1156, 1220, 1360, 1445, 1525, 1600, 1700, 1952, 2074, 2312, 2440, 2720, 2890, 3050, 3400, 3904, 4148, 4624, 4880, 5185, 5440, 5780, 6100, 6800, 7225, 8296, 9248, 9760, 10370, 11560, 12200, 13600, 14450, 16592, 17629, 18496, 19520, 20740, 23120, 24400, 25925, 27200, 28900, 33184, 35258, 41480, 46240, 48800, 51850, 57800, 66368, 70516, 82960, 88145, 92480, 97600, 103700, 115600, 141032, 165920, 176290, 207400, 231200, 282064, 331840, 352580, 414800, 440725, 462400, 564128, 705160, 829600, 881450, 1128256, 1410320, 1659200, 1762900, 2820640, 3525800, 5641280, 7051600, 14103200, 28206400]

約数ペア:

[(1, 28206400), (2, 14103200), (4, 7051600), (5, 5641280), (8, 3525800), (10, 2820640), (16, 1762900), (17, 1659200), (20, 1410320), (25, 1128256), (32, 881450), (34, 829600), (40, 705160), (50, 564128), (61, 462400), (64, 440725), (68, 414800), (80, 352580), (85, 331840), (100, 282064), (122, 231200), (136, 207400), (160, 176290), (170, 165920), (200, 141032), (244, 115600), (272, 103700), (289, 97600), (305, 92480), (320, 88145), (340, 82960), (400, 70516), (425, 66368), (488, 57800), (544, 51850), (578, 48800), (610, 46240), (680, 41480), (800, 35258), (850, 33184), (976, 28900), (1037, 27200), (1088, 25925), (1156, 24400), (1220, 23120), (1360, 20740), (1445, 19520), (1525, 18496), (1600, 17629), (1700, 16592), (1952, 14450), (2074, 13600), (2312, 12200), (2440, 11560), (2720, 10370), (2890, 9760), (3050, 9248), (3400, 8296), (3904, 7225), (4148, 6800), (4624, 6100), (4880, 5780), (5185, 5440)]