81755680

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:410

約数の個数: 96

約数和(自身を含む): 203793408

約数和(自身を除く): 122037728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 53, 62, 80, 106, 124, 155, 160, 212, 248, 265, 310, 311, 424, 496, 530, 620, 622, 848, 992, 1060, 1240, 1244, 1555, 1643, 1696, 2120, 2480, 2488, 3110, 3286, 4240, 4960, 4976, 6220, 6572, 8215, 8480, 9641, 9952, 12440, 13144, 16430, 16483, 19282, 24880, 26288, 32860, 32966, 38564, 48205, 49760, 52576, 65720, 65932, 77128, 82415, 96410, 131440, 131864, 154256, 164830, 192820, 262880, 263728, 308512, 329660, 385640, 510973, 527456, 659320, 771280, 1021946, 1318640, 1542560, 2043892, 2554865, 2637280, 4087784, 5109730, 8175568, 10219460, 16351136, 20438920, 40877840, 81755680]

約数ペア:

[(1, 81755680), (2, 40877840), (4, 20438920), (5, 16351136), (8, 10219460), (10, 8175568), (16, 5109730), (20, 4087784), (31, 2637280), (32, 2554865), (40, 2043892), (53, 1542560), (62, 1318640), (80, 1021946), (106, 771280), (124, 659320), (155, 527456), (160, 510973), (212, 385640), (248, 329660), (265, 308512), (310, 263728), (311, 262880), (424, 192820), (496, 164830), (530, 154256), (620, 131864), (622, 131440), (848, 96410), (992, 82415), (1060, 77128), (1240, 65932), (1244, 65720), (1555, 52576), (1643, 49760), (1696, 48205), (2120, 38564), (2480, 32966), (2488, 32860), (3110, 26288), (3286, 24880), (4240, 19282), (4960, 16483), (4976, 16430), (6220, 13144), (6572, 12440), (8215, 9952), (8480, 9641)]