40000478

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 75644928

約数和(自身を除く): 35644450

約数列:

[1, 2, 7, 14, 31, 37, 47, 53, 62, 74, 94, 106, 217, 259, 329, 371, 434, 518, 658, 742, 1147, 1457, 1643, 1739, 1961, 2294, 2491, 2914, 3286, 3478, 3922, 4982, 8029, 10199, 11501, 12173, 13727, 16058, 17437, 20398, 23002, 24346, 27454, 34874, 53909, 60791, 77221, 92167, 107818, 121582, 154442, 184334, 377363, 425537, 540547, 645169, 754726, 851074, 1081094, 1290338, 2857177, 5714354, 20000239, 40000478]

約数ペア:

[(1, 40000478), (2, 20000239), (7, 5714354), (14, 2857177), (31, 1290338), (37, 1081094), (47, 851074), (53, 754726), (62, 645169), (74, 540547), (94, 425537), (106, 377363), (217, 184334), (259, 154442), (329, 121582), (371, 107818), (434, 92167), (518, 77221), (658, 60791), (742, 53909), (1147, 34874), (1457, 27454), (1643, 24346), (1739, 23002), (1961, 20398), (2294, 17437), (2491, 16058), (2914, 13727), (3286, 12173), (3478, 11501), (3922, 10199), (4982, 8029)]