181680020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{13033}}^1$

素因数の和:13100

約数の個数: 48

約数和(自身を含む): 413855568

約数和(自身を除く): 232175548

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 2788, 3485, 6970, 13033, 13940, 26066, 52132, 65165, 130330, 221561, 260660, 443122, 534353, 886244, 1068706, 1107805, 2137412, 2215610, 2671765, 4431220, 5343530, 9084001, 10687060, 18168002, 36336004, 45420005, 90840010, 181680020]

約数ペア:

[(1, 181680020), (2, 90840010), (4, 45420005), (5, 36336004), (10, 18168002), (17, 10687060), (20, 9084001), (34, 5343530), (41, 4431220), (68, 2671765), (82, 2215610), (85, 2137412), (164, 1107805), (170, 1068706), (205, 886244), (340, 534353), (410, 443122), (697, 260660), (820, 221561), (1394, 130330), (2788, 65165), (3485, 52132), (6970, 26066), (13033, 13940)]