397720680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{473477}}^1$

素因数の和:473498

約数の個数: 64

約数和(自身を含む): 1363616640

約数和(自身を除く): 965895960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 473477, 946954, 1420431, 1893908, 2367385, 2840862, 3314339, 3787816, 4734770, 5681724, 6628678, 7102155, 9469540, 9943017, 11363448, 13257356, 14204310, 16571695, 18939080, 19886034, 26514712, 28408620, 33143390, 39772068, 49715085, 56817240, 66286780, 79544136, 99430170, 132573560, 198860340, 397720680]

約数ペア:

[(1, 397720680), (2, 198860340), (3, 132573560), (4, 99430170), (5, 79544136), (6, 66286780), (7, 56817240), (8, 49715085), (10, 39772068), (12, 33143390), (14, 28408620), (15, 26514712), (20, 19886034), (21, 18939080), (24, 16571695), (28, 14204310), (30, 13257356), (35, 11363448), (40, 9943017), (42, 9469540), (56, 7102155), (60, 6628678), (70, 5681724), (84, 4734770), (105, 3787816), (120, 3314339), (140, 2840862), (168, 2367385), (210, 1893908), (280, 1420431), (420, 946954), (840, 473477)]