639028416

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{256021}}^1$

素因数の和:256049

約数の個数: 56

約数和(自身を含む): 1820828464

約数和(自身を除く): 1181800048

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 156, 192, 208, 312, 416, 624, 832, 1248, 2496, 256021, 512042, 768063, 1024084, 1536126, 2048168, 3072252, 3328273, 4096336, 6144504, 6656546, 8192672, 9984819, 12289008, 13313092, 16385344, 19969638, 24578016, 26626184, 39939276, 49156032, 53252368, 79878552, 106504736, 159757104, 213009472, 319514208, 639028416]

約数ペア:

[(1, 639028416), (2, 319514208), (3, 213009472), (4, 159757104), (6, 106504736), (8, 79878552), (12, 53252368), (13, 49156032), (16, 39939276), (24, 26626184), (26, 24578016), (32, 19969638), (39, 16385344), (48, 13313092), (52, 12289008), (64, 9984819), (78, 8192672), (96, 6656546), (104, 6144504), (156, 4096336), (192, 3328273), (208, 3072252), (312, 2048168), (416, 1536126), (624, 1024084), (832, 768063), (1248, 512042), (2496, 256021)]