64643280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20719}}^1$

素因数の和:20748

約数の個数: 80

約数和(自身を含む): 215819520

約数和(自身を除く): 151176240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 20719, 41438, 62157, 82876, 103595, 124314, 165752, 207190, 248628, 269347, 310785, 331504, 414380, 497256, 538694, 621570, 808041, 828760, 994512, 1077388, 1243140, 1346735, 1616082, 1657520, 2154776, 2486280, 2693470, 3232164, 4040205, 4309552, 4972560, 5386940, 6464328, 8080410, 10773880, 12928656, 16160820, 21547760, 32321640, 64643280]

約数ペア:

[(1, 64643280), (2, 32321640), (3, 21547760), (4, 16160820), (5, 12928656), (6, 10773880), (8, 8080410), (10, 6464328), (12, 5386940), (13, 4972560), (15, 4309552), (16, 4040205), (20, 3232164), (24, 2693470), (26, 2486280), (30, 2154776), (39, 1657520), (40, 1616082), (48, 1346735), (52, 1243140), (60, 1077388), (65, 994512), (78, 828760), (80, 808041), (104, 621570), (120, 538694), (130, 497256), (156, 414380), (195, 331504), (208, 310785), (240, 269347), (260, 248628), (312, 207190), (390, 165752), (520, 124314), (624, 103595), (780, 82876), (1040, 62157), (1560, 41438), (3120, 20719)]