280140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:71

約数の個数: 96

約数和(自身を含む): 967680

約数和(自身を除く): 687540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 29, 30, 35, 42, 46, 58, 60, 69, 70, 84, 87, 92, 105, 115, 116, 138, 140, 145, 161, 174, 203, 210, 230, 276, 290, 322, 345, 348, 406, 420, 435, 460, 483, 580, 609, 644, 667, 690, 805, 812, 870, 966, 1015, 1218, 1334, 1380, 1610, 1740, 1932, 2001, 2030, 2415, 2436, 2668, 3045, 3220, 3335, 4002, 4060, 4669, 4830, 6090, 6670, 8004, 9338, 9660, 10005, 12180, 13340, 14007, 18676, 20010, 23345, 28014, 40020, 46690, 56028, 70035, 93380, 140070, 280140]

約数ペア:

[(1, 280140), (2, 140070), (3, 93380), (4, 70035), (5, 56028), (6, 46690), (7, 40020), (10, 28014), (12, 23345), (14, 20010), (15, 18676), (20, 14007), (21, 13340), (23, 12180), (28, 10005), (29, 9660), (30, 9338), (35, 8004), (42, 6670), (46, 6090), (58, 4830), (60, 4669), (69, 4060), (70, 4002), (84, 3335), (87, 3220), (92, 3045), (105, 2668), (115, 2436), (116, 2415), (138, 2030), (140, 2001), (145, 1932), (161, 1740), (174, 1610), (203, 1380), (210, 1334), (230, 1218), (276, 1015), (290, 966), (322, 870), (345, 812), (348, 805), (406, 690), (420, 667), (435, 644), (460, 609), (483, 580)]