641498624

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3109}}^1$

素因数の和:3171

約数の個数: 80

約数和(自身を含む): 1425325440

約数和(自身を除く): 783826816

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 512, 806, 832, 992, 1612, 1664, 1984, 3109, 3224, 3328, 3968, 6218, 6448, 6656, 7936, 12436, 12896, 15872, 24872, 25792, 40417, 49744, 51584, 80834, 96379, 99488, 103168, 161668, 192758, 198976, 206336, 323336, 385516, 397952, 646672, 771032, 795904, 1252927, 1293344, 1542064, 1591808, 2505854, 2586688, 3084128, 5011708, 5173376, 6168256, 10023416, 10346752, 12336512, 20046832, 20693504, 24673024, 40093664, 49346048, 80187328, 160374656, 320749312, 641498624]

約数ペア:

[(1, 641498624), (2, 320749312), (4, 160374656), (8, 80187328), (13, 49346048), (16, 40093664), (26, 24673024), (31, 20693504), (32, 20046832), (52, 12336512), (62, 10346752), (64, 10023416), (104, 6168256), (124, 5173376), (128, 5011708), (208, 3084128), (248, 2586688), (256, 2505854), (403, 1591808), (416, 1542064), (496, 1293344), (512, 1252927), (806, 795904), (832, 771032), (992, 646672), (1612, 397952), (1664, 385516), (1984, 323336), (3109, 206336), (3224, 198976), (3328, 192758), (3968, 161668), (6218, 103168), (6448, 99488), (6656, 96379), (7936, 80834), (12436, 51584), (12896, 49744), (15872, 40417), (24872, 25792)]