808832020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1\times {\mathrm{1889}}^1$

素因数の和:2248

約数の個数: 48

約数和(自身を含む): 1727308800

約数和(自身を除く): 918476780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 271, 316, 395, 542, 790, 1084, 1355, 1580, 1889, 2710, 3778, 5420, 7556, 9445, 18890, 21409, 37780, 42818, 85636, 107045, 149231, 214090, 298462, 428180, 511919, 596924, 746155, 1023838, 1492310, 2047676, 2559595, 2984620, 5119190, 10238380, 40441601, 80883202, 161766404, 202208005, 404416010, 808832020]

約数ペア:

[(1, 808832020), (2, 404416010), (4, 202208005), (5, 161766404), (10, 80883202), (20, 40441601), (79, 10238380), (158, 5119190), (271, 2984620), (316, 2559595), (395, 2047676), (542, 1492310), (790, 1023838), (1084, 746155), (1355, 596924), (1580, 511919), (1889, 428180), (2710, 298462), (3778, 214090), (5420, 149231), (7556, 107045), (9445, 85636), (18890, 42818), (21409, 37780)]