1260408020

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1\times {\mathrm{1423}}^1$

素因数の和:2160

約数の個数: 48

約数和(自身を含む): 2692316928

約数和(自身を除く): 1431908908

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 661, 670, 1322, 1340, 1423, 2644, 2846, 3305, 5692, 6610, 7115, 13220, 14230, 28460, 44287, 88574, 95341, 177148, 190682, 221435, 381364, 442870, 476705, 885740, 940603, 953410, 1881206, 1906820, 3762412, 4703015, 9406030, 18812060, 63020401, 126040802, 252081604, 315102005, 630204010, 1260408020]

約数ペア:

[(1, 1260408020), (2, 630204010), (4, 315102005), (5, 252081604), (10, 126040802), (20, 63020401), (67, 18812060), (134, 9406030), (268, 4703015), (335, 3762412), (661, 1906820), (670, 1881206), (1322, 953410), (1340, 940603), (1423, 885740), (2644, 476705), (2846, 442870), (3305, 381364), (5692, 221435), (6610, 190682), (7115, 177148), (13220, 95341), (14230, 88574), (28460, 44287)]