245887240

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{499}}^1$

素因数の和:734

約数の個数: 64

約数和(自身を含む): 564480000

約数和(自身を除く): 318592760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 127, 194, 254, 388, 485, 499, 508, 635, 776, 970, 998, 1016, 1270, 1940, 1996, 2495, 2540, 3880, 3992, 4990, 5080, 9980, 12319, 19960, 24638, 48403, 49276, 61595, 63373, 96806, 98552, 123190, 126746, 193612, 242015, 246380, 253492, 316865, 387224, 484030, 492760, 506984, 633730, 968060, 1267460, 1936120, 2534920, 6147181, 12294362, 24588724, 30735905, 49177448, 61471810, 122943620, 245887240]

約数ペア:

[(1, 245887240), (2, 122943620), (4, 61471810), (5, 49177448), (8, 30735905), (10, 24588724), (20, 12294362), (40, 6147181), (97, 2534920), (127, 1936120), (194, 1267460), (254, 968060), (388, 633730), (485, 506984), (499, 492760), (508, 484030), (635, 387224), (776, 316865), (970, 253492), (998, 246380), (1016, 242015), (1270, 193612), (1940, 126746), (1996, 123190), (2495, 98552), (2540, 96806), (3880, 63373), (3992, 61595), (4990, 49276), (5080, 48403), (9980, 24638), (12319, 19960)]