25819480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 62402400

約数和(自身を除く): 36582920

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 424, 530, 641, 760, 1007, 1060, 1282, 2014, 2120, 2564, 3205, 4028, 5035, 5128, 6410, 8056, 10070, 12179, 12820, 20140, 24358, 25640, 33973, 40280, 48716, 60895, 67946, 97432, 121790, 135892, 169865, 243580, 271784, 339730, 487160, 645487, 679460, 1290974, 1358920, 2581948, 3227435, 5163896, 6454870, 12909740, 25819480]

約数ペア:

[(1, 25819480), (2, 12909740), (4, 6454870), (5, 5163896), (8, 3227435), (10, 2581948), (19, 1358920), (20, 1290974), (38, 679460), (40, 645487), (53, 487160), (76, 339730), (95, 271784), (106, 243580), (152, 169865), (190, 135892), (212, 121790), (265, 97432), (380, 67946), (424, 60895), (530, 48716), (641, 40280), (760, 33973), (1007, 25640), (1060, 24358), (1282, 20140), (2014, 12820), (2120, 12179), (2564, 10070), (3205, 8056), (4028, 6410), (5035, 5128)]