81465160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15313}}^1$

素因数の和:15350

約数の個数: 64

約数和(自身を含む): 220521600

約数和(自身を除く): 139056440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 15313, 30626, 61252, 76565, 107191, 122504, 153130, 214382, 290947, 306260, 428764, 535955, 581894, 612520, 857528, 1071910, 1163788, 1454735, 2036629, 2143820, 2327576, 2909470, 4073258, 4287640, 5818940, 8146516, 10183145, 11637880, 16293032, 20366290, 40732580, 81465160]

約数ペア:

[(1, 81465160), (2, 40732580), (4, 20366290), (5, 16293032), (7, 11637880), (8, 10183145), (10, 8146516), (14, 5818940), (19, 4287640), (20, 4073258), (28, 2909470), (35, 2327576), (38, 2143820), (40, 2036629), (56, 1454735), (70, 1163788), (76, 1071910), (95, 857528), (133, 612520), (140, 581894), (152, 535955), (190, 428764), (266, 306260), (280, 290947), (380, 214382), (532, 153130), (665, 122504), (760, 107191), (1064, 76565), (1330, 61252), (2660, 30626), (5320, 15313)]