840420

素因数分解:

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

素因数の和:74

約数の個数: 144

約数和(自身を含む): 3144960

約数和(自身を除く): 2304540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 29, 30, 35, 36, 42, 45, 46, 58, 60, 63, 69, 70, 84, 87, 90, 92, 105, 115, 116, 126, 138, 140, 145, 161, 174, 180, 203, 207, 210, 230, 252, 261, 276, 290, 315, 322, 345, 348, 406, 414, 420, 435, 460, 483, 522, 580, 609, 630, 644, 667, 690, 805, 812, 828, 870, 966, 1015, 1035, 1044, 1218, 1260, 1305, 1334, 1380, 1449, 1610, 1740, 1827, 1932, 2001, 2030, 2070, 2415, 2436, 2610, 2668, 2898, 3045, 3220, 3335, 3654, 4002, 4060, 4140, 4669, 4830, 5220, 5796, 6003, 6090, 6670, 7245, 7308, 8004, 9135, 9338, 9660, 10005, 12006, 12180, 13340, 14007, 14490, 18270, 18676, 20010, 23345, 24012, 28014, 28980, 30015, 36540, 40020, 42021, 46690, 56028, 60030, 70035, 84042, 93380, 120060, 140070, 168084, 210105, 280140, 420210, 840420]

約数ペア:

[(1, 840420), (2, 420210), (3, 280140), (4, 210105), (5, 168084), (6, 140070), (7, 120060), (9, 93380), (10, 84042), (12, 70035), (14, 60030), (15, 56028), (18, 46690), (20, 42021), (21, 40020), (23, 36540), (28, 30015), (29, 28980), (30, 28014), (35, 24012), (36, 23345), (42, 20010), (45, 18676), (46, 18270), (58, 14490), (60, 14007), (63, 13340), (69, 12180), (70, 12006), (84, 10005), (87, 9660), (90, 9338), (92, 9135), (105, 8004), (115, 7308), (116, 7245), (126, 6670), (138, 6090), (140, 6003), (145, 5796), (161, 5220), (174, 4830), (180, 4669), (203, 4140), (207, 4060), (210, 4002), (230, 3654), (252, 3335), (261, 3220), (276, 3045), (290, 2898), (315, 2668), (322, 2610), (345, 2436), (348, 2415), (406, 2070), (414, 2030), (420, 2001), (435, 1932), (460, 1827), (483, 1740), (522, 1610), (580, 1449), (609, 1380), (630, 1334), (644, 1305), (667, 1260), (690, 1218), (805, 1044), (812, 1035), (828, 1015), (870, 966)]