28801000

素因数分解:

$2^3\times 5^3\times {\mathrm{83}}^1\times {\mathrm{347}}^1$

素因数の和:451

約数の個数: 64

約数和(自身を含む): 68402880

約数和(自身を除く): 39601880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 83, 100, 125, 166, 200, 250, 332, 347, 415, 500, 664, 694, 830, 1000, 1388, 1660, 1735, 2075, 2776, 3320, 3470, 4150, 6940, 8300, 8675, 10375, 13880, 16600, 17350, 20750, 28801, 34700, 41500, 43375, 57602, 69400, 83000, 86750, 115204, 144005, 173500, 230408, 288010, 347000, 576020, 720025, 1152040, 1440050, 2880100, 3600125, 5760200, 7200250, 14400500, 28801000]

約数ペア:

[(1, 28801000), (2, 14400500), (4, 7200250), (5, 5760200), (8, 3600125), (10, 2880100), (20, 1440050), (25, 1152040), (40, 720025), (50, 576020), (83, 347000), (100, 288010), (125, 230408), (166, 173500), (200, 144005), (250, 115204), (332, 86750), (347, 83000), (415, 69400), (500, 57602), (664, 43375), (694, 41500), (830, 34700), (1000, 28801), (1388, 20750), (1660, 17350), (1735, 16600), (2075, 13880), (2776, 10375), (3320, 8675), (3470, 8300), (4150, 6940)]