82653440

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2083}}^1$

素因数の和:2135

約数の個数: 72

約数和(自身を含む): 204465408

約数和(自身を除く): 121811968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2083, 2480, 3968, 4166, 4960, 7936, 8332, 9920, 10415, 16664, 19840, 20830, 33328, 39680, 41660, 64573, 66656, 83320, 129146, 133312, 166640, 258292, 266624, 322865, 333280, 516584, 533248, 645730, 666560, 1033168, 1291460, 1333120, 2066336, 2582920, 2666240, 4132672, 5165840, 8265344, 10331680, 16530688, 20663360, 41326720, 82653440]

約数ペア:

[(1, 82653440), (2, 41326720), (4, 20663360), (5, 16530688), (8, 10331680), (10, 8265344), (16, 5165840), (20, 4132672), (31, 2666240), (32, 2582920), (40, 2066336), (62, 1333120), (64, 1291460), (80, 1033168), (124, 666560), (128, 645730), (155, 533248), (160, 516584), (248, 333280), (256, 322865), (310, 266624), (320, 258292), (496, 166640), (620, 133312), (640, 129146), (992, 83320), (1240, 66656), (1280, 64573), (1984, 41660), (2083, 39680), (2480, 33328), (3968, 20830), (4166, 19840), (4960, 16664), (7936, 10415), (8332, 9920)]