217091805050

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{3541}}^1\times {\mathrm{20101}}^1$

素因数の和:23715

約数の個数: 48

約数和(自身を含む): 410546603544

約数和(自身を除く): 193454798494

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 3541, 7082, 17705, 20101, 35410, 40202, 88525, 100505, 177050, 201010, 216001, 432002, 502525, 1005050, 1080005, 1226161, 2160010, 2452322, 5400025, 6130805, 10800050, 12261610, 30654025, 61308050, 71177641, 142355282, 355888205, 711776410, 1779441025, 3558882050, 4341836101, 8683672202, 21709180505, 43418361010, 108545902525, 217091805050]

約数ペア:

[(1, 217091805050), (2, 108545902525), (5, 43418361010), (10, 21709180505), (25, 8683672202), (50, 4341836101), (61, 3558882050), (122, 1779441025), (305, 711776410), (610, 355888205), (1525, 142355282), (3050, 71177641), (3541, 61308050), (7082, 30654025), (17705, 12261610), (20101, 10800050), (35410, 6130805), (40202, 5400025), (88525, 2452322), (100505, 2160010), (177050, 1226161), (201010, 1080005), (216001, 1005050), (432002, 502525)]