721618690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{773}}^1$

素因数の和:1003

約数の個数: 64

約数和(自身を含む): 1441794816

約数和(自身を除く): 720176126

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 167, 215, 334, 430, 559, 773, 835, 1118, 1546, 1670, 2171, 2795, 3865, 4342, 5590, 7181, 7730, 10049, 10855, 14362, 20098, 21710, 33239, 35905, 50245, 66478, 71810, 93353, 100490, 129091, 166195, 186706, 258182, 332390, 432107, 466765, 645455, 864214, 933530, 1290910, 1678183, 2160535, 3356366, 4321070, 5550913, 8390915, 11101826, 16781830, 27754565, 55509130, 72161869, 144323738, 360809345, 721618690]

約数ペア:

[(1, 721618690), (2, 360809345), (5, 144323738), (10, 72161869), (13, 55509130), (26, 27754565), (43, 16781830), (65, 11101826), (86, 8390915), (130, 5550913), (167, 4321070), (215, 3356366), (334, 2160535), (430, 1678183), (559, 1290910), (773, 933530), (835, 864214), (1118, 645455), (1546, 466765), (1670, 432107), (2171, 332390), (2795, 258182), (3865, 186706), (4342, 166195), (5590, 129091), (7181, 100490), (7730, 93353), (10049, 71810), (10855, 66478), (14362, 50245), (20098, 35905), (21710, 33239)]