81645090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{631}}^1$

素因数の和:887

約数の個数: 64

約数和(自身を含む): 207498240

約数和(自身を除く): 125853150

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 227, 285, 454, 570, 631, 681, 1135, 1262, 1362, 1893, 2270, 3155, 3405, 3786, 4313, 6310, 6810, 8626, 9465, 11989, 12939, 18930, 21565, 23978, 25878, 35967, 43130, 59945, 64695, 71934, 119890, 129390, 143237, 179835, 286474, 359670, 429711, 716185, 859422, 1432370, 2148555, 2721503, 4297110, 5443006, 8164509, 13607515, 16329018, 27215030, 40822545, 81645090]

約数ペア:

[(1, 81645090), (2, 40822545), (3, 27215030), (5, 16329018), (6, 13607515), (10, 8164509), (15, 5443006), (19, 4297110), (30, 2721503), (38, 2148555), (57, 1432370), (95, 859422), (114, 716185), (190, 429711), (227, 359670), (285, 286474), (454, 179835), (570, 143237), (631, 129390), (681, 119890), (1135, 71934), (1262, 64695), (1362, 59945), (1893, 43130), (2270, 35967), (3155, 25878), (3405, 23978), (3786, 21565), (4313, 18930), (6310, 12939), (6810, 11989), (8626, 9465)]