81252535

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 123875136

約数和(自身を除く): 42622601

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 97, 245, 263, 455, 485, 637, 679, 1261, 1315, 1841, 3185, 3395, 3419, 4753, 6305, 8827, 9205, 12887, 17095, 23765, 23933, 25511, 44135, 61789, 64435, 119665, 127555, 167531, 178577, 308945, 331643, 837655, 892885, 1250039, 1658215, 2321501, 6250195, 11607505, 16250507, 81252535]

約数ペア:

[(1, 81252535), (5, 16250507), (7, 11607505), (13, 6250195), (35, 2321501), (49, 1658215), (65, 1250039), (91, 892885), (97, 837655), (245, 331643), (263, 308945), (455, 178577), (485, 167531), (637, 127555), (679, 119665), (1261, 64435), (1315, 61789), (1841, 44135), (3185, 25511), (3395, 23933), (3419, 23765), (4753, 17095), (6305, 12887), (8827, 9205)]