2017180025

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1\times {\mathrm{811}}^1$

素因数の和:1122

約数の個数: 48

約数和(自身を含む): 2921563008

約数和(自身を除く): 904382983

約数列:

[1, 5, 7, 25, 35, 61, 175, 233, 305, 427, 811, 1165, 1525, 1631, 2135, 4055, 5677, 5825, 8155, 10675, 14213, 20275, 28385, 40775, 49471, 71065, 99491, 141925, 188963, 247355, 346297, 355325, 497455, 944815, 1236775, 1322741, 1731485, 2487275, 4724075, 6613705, 8657425, 11526743, 33068525, 57633715, 80687201, 288168575, 403436005, 2017180025]

約数ペア:

[(1, 2017180025), (5, 403436005), (7, 288168575), (25, 80687201), (35, 57633715), (61, 33068525), (175, 11526743), (233, 8657425), (305, 6613705), (427, 4724075), (811, 2487275), (1165, 1731485), (1525, 1322741), (1631, 1236775), (2135, 944815), (4055, 497455), (5677, 355325), (5825, 346297), (8155, 247355), (10675, 188963), (14213, 141925), (20275, 99491), (28385, 71065), (40775, 49471)]