64640223

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 102960000

約数和(自身を除く): 38319777

約数列:

[1, 3, 9, 19, 43, 57, 59, 129, 149, 171, 177, 387, 447, 531, 817, 1121, 1341, 2451, 2537, 2831, 3363, 6407, 7353, 7611, 8493, 8791, 10089, 19221, 22833, 25479, 26373, 48203, 57663, 79119, 121733, 144609, 167029, 365199, 378013, 433827, 501087, 1095597, 1134039, 1503261, 3402117, 7182247, 21546741, 64640223]

約数ペア:

[(1, 64640223), (3, 21546741), (9, 7182247), (19, 3402117), (43, 1503261), (57, 1134039), (59, 1095597), (129, 501087), (149, 433827), (171, 378013), (177, 365199), (387, 167029), (447, 144609), (531, 121733), (817, 79119), (1121, 57663), (1341, 48203), (2451, 26373), (2537, 25479), (2831, 22833), (3363, 19221), (6407, 10089), (7353, 8791), (7611, 8493)]