265320320

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:404

約数の個数: 128

約数和(自身を含む): 672122880

約数和(自身を除く): 406802560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 64, 80, 86, 124, 128, 155, 160, 172, 215, 248, 310, 311, 320, 344, 430, 496, 620, 622, 640, 688, 860, 992, 1240, 1244, 1333, 1376, 1555, 1720, 1984, 2480, 2488, 2666, 2752, 3110, 3440, 3968, 4960, 4976, 5332, 5504, 6220, 6665, 6880, 9641, 9920, 9952, 10664, 12440, 13330, 13373, 13760, 19282, 19840, 19904, 21328, 24880, 26660, 26746, 27520, 38564, 39808, 42656, 48205, 49760, 53320, 53492, 66865, 77128, 85312, 96410, 99520, 106640, 106984, 133730, 154256, 170624, 192820, 199040, 213280, 213968, 267460, 308512, 385640, 414563, 426560, 427936, 534920, 617024, 771280, 829126, 853120, 855872, 1069840, 1234048, 1542560, 1658252, 1711744, 2072815, 2139680, 3085120, 3316504, 4145630, 4279360, 6170240, 6633008, 8291260, 8558720, 13266016, 16582520, 26532032, 33165040, 53064064, 66330080, 132660160, 265320320]

約数ペア:

[(1, 265320320), (2, 132660160), (4, 66330080), (5, 53064064), (8, 33165040), (10, 26532032), (16, 16582520), (20, 13266016), (31, 8558720), (32, 8291260), (40, 6633008), (43, 6170240), (62, 4279360), (64, 4145630), (80, 3316504), (86, 3085120), (124, 2139680), (128, 2072815), (155, 1711744), (160, 1658252), (172, 1542560), (215, 1234048), (248, 1069840), (310, 855872), (311, 853120), (320, 829126), (344, 771280), (430, 617024), (496, 534920), (620, 427936), (622, 426560), (640, 414563), (688, 385640), (860, 308512), (992, 267460), (1240, 213968), (1244, 213280), (1333, 199040), (1376, 192820), (1555, 170624), (1720, 154256), (1984, 133730), (2480, 106984), (2488, 106640), (2666, 99520), (2752, 96410), (3110, 85312), (3440, 77128), (3968, 66865), (4960, 53492), (4976, 53320), (5332, 49760), (5504, 48205), (6220, 42656), (6665, 39808), (6880, 38564), (9641, 27520), (9920, 26746), (9952, 26660), (10664, 24880), (12440, 21328), (13330, 19904), (13373, 19840), (13760, 19282)]