127913320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3581}}^1$

素因数の和:3658

約数の個数: 64

約数和(自身を含む): 309484800

約数和(自身を除く): 181571480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 893, 940, 1786, 1880, 3572, 3581, 4465, 7144, 7162, 8930, 14324, 17860, 17905, 28648, 35720, 35810, 68039, 71620, 136078, 143240, 168307, 272156, 336614, 340195, 544312, 673228, 680390, 841535, 1346456, 1360780, 1683070, 2721560, 3197833, 3366140, 6395666, 6732280, 12791332, 15989165, 25582664, 31978330, 63956660, 127913320]

約数ペア:

[(1, 127913320), (2, 63956660), (4, 31978330), (5, 25582664), (8, 15989165), (10, 12791332), (19, 6732280), (20, 6395666), (38, 3366140), (40, 3197833), (47, 2721560), (76, 1683070), (94, 1360780), (95, 1346456), (152, 841535), (188, 680390), (190, 673228), (235, 544312), (376, 340195), (380, 336614), (470, 272156), (760, 168307), (893, 143240), (940, 136078), (1786, 71620), (1880, 68039), (3572, 35810), (3581, 35720), (4465, 28648), (7144, 17905), (7162, 17860), (8930, 14324)]