80985640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{271}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 189573120

約数和(自身を除く): 108587480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 241, 248, 271, 310, 482, 542, 620, 964, 1084, 1205, 1240, 1355, 1928, 2168, 2410, 2710, 4820, 5420, 7471, 8401, 9640, 10840, 14942, 16802, 29884, 33604, 37355, 42005, 59768, 65311, 67208, 74710, 84010, 130622, 149420, 168020, 261244, 298840, 326555, 336040, 522488, 653110, 1306220, 2024641, 2612440, 4049282, 8098564, 10123205, 16197128, 20246410, 40492820, 80985640]

約数ペア:

[(1, 80985640), (2, 40492820), (4, 20246410), (5, 16197128), (8, 10123205), (10, 8098564), (20, 4049282), (31, 2612440), (40, 2024641), (62, 1306220), (124, 653110), (155, 522488), (241, 336040), (248, 326555), (271, 298840), (310, 261244), (482, 168020), (542, 149420), (620, 130622), (964, 84010), (1084, 74710), (1205, 67208), (1240, 65311), (1355, 59768), (1928, 42005), (2168, 37355), (2410, 33604), (2710, 29884), (4820, 16802), (5420, 14942), (7471, 10840), (8401, 9640)]