978497860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{701}}^1\times {\mathrm{983}}^1$

素因数の和:1764

約数の個数: 48

約数和(自身を含む): 2088882432

約数和(自身を除く): 1110384572

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 701, 710, 983, 1402, 1420, 1966, 2804, 3505, 3932, 4915, 7010, 9830, 14020, 19660, 49771, 69793, 99542, 139586, 199084, 248855, 279172, 348965, 497710, 689083, 697930, 995420, 1378166, 1395860, 2756332, 3445415, 6890830, 13781660, 48924893, 97849786, 195699572, 244624465, 489248930, 978497860]

約数ペア:

[(1, 978497860), (2, 489248930), (4, 244624465), (5, 195699572), (10, 97849786), (20, 48924893), (71, 13781660), (142, 6890830), (284, 3445415), (355, 2756332), (701, 1395860), (710, 1378166), (983, 995420), (1402, 697930), (1420, 689083), (1966, 497710), (2804, 348965), (3505, 279172), (3932, 248855), (4915, 199084), (7010, 139586), (9830, 99542), (14020, 69793), (19660, 49771)]