138389900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1297}}^1$

素因数の和:1419

約数の個数: 72

約数和(自身を含む): 331239216

約数和(自身を除く): 192849316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 97, 100, 110, 194, 220, 275, 388, 485, 550, 970, 1067, 1100, 1297, 1940, 2134, 2425, 2594, 4268, 4850, 5188, 5335, 6485, 9700, 10670, 12970, 14267, 21340, 25940, 26675, 28534, 32425, 53350, 57068, 64850, 71335, 106700, 125809, 129700, 142670, 251618, 285340, 356675, 503236, 629045, 713350, 1258090, 1383899, 1426700, 2516180, 2767798, 3145225, 5535596, 6290450, 6919495, 12580900, 13838990, 27677980, 34597475, 69194950, 138389900]

約数ペア:

[(1, 138389900), (2, 69194950), (4, 34597475), (5, 27677980), (10, 13838990), (11, 12580900), (20, 6919495), (22, 6290450), (25, 5535596), (44, 3145225), (50, 2767798), (55, 2516180), (97, 1426700), (100, 1383899), (110, 1258090), (194, 713350), (220, 629045), (275, 503236), (388, 356675), (485, 285340), (550, 251618), (970, 142670), (1067, 129700), (1100, 125809), (1297, 106700), (1940, 71335), (2134, 64850), (2425, 57068), (2594, 53350), (4268, 32425), (4850, 28534), (5188, 26675), (5335, 25940), (6485, 21340), (9700, 14267), (10670, 12970)]