68608680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{81677}}^1$

素因数の和:81698

約数の個数: 64

約数和(自身を含む): 235232640

約数和(自身を除く): 166623960

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, 81677, 163354, 245031, 326708, 408385, 490062, 571739, 653416, 816770, 980124, 1143478, 1225155, 1633540, 1715217, 1960248, 2286956, 2450310, 2858695, 3267080, 3430434, 4573912, 4900620, 5717390, 6860868, 8576085, 9801240, 11434780, 13721736, 17152170, 22869560, 34304340, 68608680]

約数ペア:

[(1, 68608680), (2, 34304340), (3, 22869560), (4, 17152170), (5, 13721736), (6, 11434780), (7, 9801240), (8, 8576085), (10, 6860868), (12, 5717390), (14, 4900620), (15, 4573912), (20, 3430434), (21, 3267080), (24, 2858695), (28, 2450310), (30, 2286956), (35, 1960248), (40, 1715217), (42, 1633540), (56, 1225155), (60, 1143478), (70, 980124), (84, 816770), (105, 653416), (120, 571739), (140, 490062), (168, 408385), (210, 326708), (280, 245031), (420, 163354), (840, 81677)]