68040

素因数分解:

$2^3\times 3^5\times 5^1\times 7^1$

素因数の和:33

約数の個数: 96

約数和(自身を含む): 262080

約数和(自身を除く): 194040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 315, 324, 360, 378, 405, 420, 486, 504, 540, 567, 630, 648, 756, 810, 840, 945, 972, 1080, 1134, 1215, 1260, 1512, 1620, 1701, 1890, 1944, 2268, 2430, 2520, 2835, 3240, 3402, 3780, 4536, 4860, 5670, 6804, 7560, 8505, 9720, 11340, 13608, 17010, 22680, 34020, 68040]

約数ペア:

[(1, 68040), (2, 34020), (3, 22680), (4, 17010), (5, 13608), (6, 11340), (7, 9720), (8, 8505), (9, 7560), (10, 6804), (12, 5670), (14, 4860), (15, 4536), (18, 3780), (20, 3402), (21, 3240), (24, 2835), (27, 2520), (28, 2430), (30, 2268), (35, 1944), (36, 1890), (40, 1701), (42, 1620), (45, 1512), (54, 1260), (56, 1215), (60, 1134), (63, 1080), (70, 972), (72, 945), (81, 840), (84, 810), (90, 756), (105, 648), (108, 630), (120, 567), (126, 540), (135, 504), (140, 486), (162, 420), (168, 405), (180, 378), (189, 360), (210, 324), (216, 315), (243, 280), (252, 270)]