20528033375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7247}}^1$

素因数の和:7353

約数の個数: 64

約数和(自身を含む): 28656156672

約数和(自身を除く): 8128123297

約数列:

[1, 5, 17, 25, 31, 43, 85, 125, 155, 215, 425, 527, 731, 775, 1075, 1333, 2125, 2635, 3655, 3875, 5375, 6665, 7247, 13175, 18275, 22661, 33325, 36235, 65875, 91375, 113305, 123199, 166625, 181175, 224657, 311621, 566525, 615995, 905875, 1123285, 1558105, 2832625, 3079975, 3819169, 5297557, 5616425, 7790525, 9660251, 15399875, 19095845, 26487785, 28082125, 38952625, 48301255, 95479225, 132438925, 164224267, 241506275, 477396125, 662194625, 821121335, 1207531375, 4105606675, 20528033375]

約数ペア:

[(1, 20528033375), (5, 4105606675), (17, 1207531375), (25, 821121335), (31, 662194625), (43, 477396125), (85, 241506275), (125, 164224267), (155, 132438925), (215, 95479225), (425, 48301255), (527, 38952625), (731, 28082125), (775, 26487785), (1075, 19095845), (1333, 15399875), (2125, 9660251), (2635, 7790525), (3655, 5616425), (3875, 5297557), (5375, 3819169), (6665, 3079975), (7247, 2832625), (13175, 1558105), (18275, 1123285), (22661, 905875), (33325, 615995), (36235, 566525), (65875, 311621), (91375, 224657), (113305, 181175), (123199, 166625)]