31398780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{74759}}^1$

素因数の和:74778

約数の個数: 48

約数和(自身を含む): 100477440

約数和(自身を除く): 69078660

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, 74759, 149518, 224277, 299036, 373795, 448554, 523313, 747590, 897108, 1046626, 1121385, 1495180, 1569939, 2093252, 2242770, 2616565, 3139878, 4485540, 5233130, 6279756, 7849695, 10466260, 15699390, 31398780]

約数ペア:

[(1, 31398780), (2, 15699390), (3, 10466260), (4, 7849695), (5, 6279756), (6, 5233130), (7, 4485540), (10, 3139878), (12, 2616565), (14, 2242770), (15, 2093252), (20, 1569939), (21, 1495180), (28, 1121385), (30, 1046626), (35, 897108), (42, 747590), (60, 523313), (70, 448554), (84, 373795), (105, 299036), (140, 224277), (210, 149518), (420, 74759)]