25505560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 60318720

約数和(自身を除く): 34813160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 67, 124, 134, 155, 248, 268, 307, 310, 335, 536, 614, 620, 670, 1228, 1240, 1340, 1535, 2077, 2456, 2680, 3070, 4154, 6140, 8308, 9517, 10385, 12280, 16616, 19034, 20569, 20770, 38068, 41138, 41540, 47585, 76136, 82276, 83080, 95170, 102845, 164552, 190340, 205690, 380680, 411380, 637639, 822760, 1275278, 2550556, 3188195, 5101112, 6376390, 12752780, 25505560]

約数ペア:

[(1, 25505560), (2, 12752780), (4, 6376390), (5, 5101112), (8, 3188195), (10, 2550556), (20, 1275278), (31, 822760), (40, 637639), (62, 411380), (67, 380680), (124, 205690), (134, 190340), (155, 164552), (248, 102845), (268, 95170), (307, 83080), (310, 82276), (335, 76136), (536, 47585), (614, 41540), (620, 41138), (670, 38068), (1228, 20770), (1240, 20569), (1340, 19034), (1535, 16616), (2077, 12280), (2456, 10385), (2680, 9517), (3070, 8308), (4154, 6140)]