64237280

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4139}}^1$

素因数の和:4251

約数の個数: 48

約数和(自身を含む): 153362160

約数和(自身を除く): 89124880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 3104, 3880, 4139, 7760, 8278, 15520, 16556, 20695, 33112, 41390, 66224, 82780, 132448, 165560, 331120, 401483, 662240, 802966, 1605932, 2007415, 3211864, 4014830, 6423728, 8029660, 12847456, 16059320, 32118640, 64237280]

約数ペア:

[(1, 64237280), (2, 32118640), (4, 16059320), (5, 12847456), (8, 8029660), (10, 6423728), (16, 4014830), (20, 3211864), (32, 2007415), (40, 1605932), (80, 802966), (97, 662240), (160, 401483), (194, 331120), (388, 165560), (485, 132448), (776, 82780), (970, 66224), (1552, 41390), (1940, 33112), (3104, 20695), (3880, 16556), (4139, 15520), (7760, 8278)]