129685180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{1997}}^1$

素因数の和:2214

約数の個数: 48

約数和(自身を含む): 290013696

約数和(自身を除く): 160328516

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 191, 340, 382, 764, 955, 1910, 1997, 3247, 3820, 3994, 6494, 7988, 9985, 12988, 16235, 19970, 32470, 33949, 39940, 64940, 67898, 135796, 169745, 339490, 381427, 678980, 762854, 1525708, 1907135, 3814270, 6484259, 7628540, 12968518, 25937036, 32421295, 64842590, 129685180]

約数ペア:

[(1, 129685180), (2, 64842590), (4, 32421295), (5, 25937036), (10, 12968518), (17, 7628540), (20, 6484259), (34, 3814270), (68, 1907135), (85, 1525708), (170, 762854), (191, 678980), (340, 381427), (382, 339490), (764, 169745), (955, 135796), (1910, 67898), (1997, 64940), (3247, 39940), (3820, 33949), (3994, 32470), (6494, 19970), (7988, 16235), (9985, 12988)]