878542980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{2091769}}^1$

素因数の和:2091788

約数の個数: 48

約数和(自身を含む): 2811338880

約数和(自身を除く): 1932795900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 2091769, 4183538, 6275307, 8367076, 10458845, 12550614, 14642383, 20917690, 25101228, 29284766, 31376535, 41835380, 43927149, 58569532, 62753070, 73211915, 87854298, 125506140, 146423830, 175708596, 219635745, 292847660, 439271490, 878542980]

約数ペア:

[(1, 878542980), (2, 439271490), (3, 292847660), (4, 219635745), (5, 175708596), (6, 146423830), (7, 125506140), (10, 87854298), (12, 73211915), (14, 62753070), (15, 58569532), (20, 43927149), (21, 41835380), (28, 31376535), (30, 29284766), (35, 25101228), (42, 20917690), (60, 14642383), (70, 12550614), (84, 10458845), (105, 8367076), (140, 6275307), (210, 4183538), (420, 2091769)]