20781567382030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{81703}}^1\times {\mathrm{279511}}^1$

素因数の和:361241

約数の個数: 64

約数和(自身を含む): 46039892871168

約数和(自身を除く): 25258325489138

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 81703, 163406, 279511, 408515, 559022, 571921, 817030, 1062139, 1143842, 1397555, 1956577, 2124278, 2795110, 2859605, 3633643, 3913154, 5310695, 5719210, 7267286, 7434973, 9782885, 10621390, 14869946, 18168215, 19565770, 25435501, 36336430, 37174865, 50871002, 74349730, 127177505, 254355010, 22836887233, 45673774466, 114184436165, 159858210631, 228368872330, 296879534029, 319716421262, 593759068058, 799291053155, 1484397670145, 1598582106310, 2078156738203, 2968795340290, 4156313476406, 10390783691015, 20781567382030]

約数ペア:

[(1, 20781567382030), (2, 10390783691015), (5, 4156313476406), (7, 2968795340290), (10, 2078156738203), (13, 1598582106310), (14, 1484397670145), (26, 799291053155), (35, 593759068058), (65, 319716421262), (70, 296879534029), (91, 228368872330), (130, 159858210631), (182, 114184436165), (455, 45673774466), (910, 22836887233), (81703, 254355010), (163406, 127177505), (279511, 74349730), (408515, 50871002), (559022, 37174865), (571921, 36336430), (817030, 25435501), (1062139, 19565770), (1143842, 18168215), (1397555, 14869946), (1956577, 10621390), (2124278, 9782885), (2795110, 7434973), (2859605, 7267286), (3633643, 5719210), (3913154, 5310695)]