312591720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1889}}^1$

素因数の和:2107

約数の個数: 128

約数和(自身を含む): 1077753600

約数和(自身を除く): 765161880

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, 197, 210, 280, 394, 420, 591, 788, 840, 985, 1182, 1379, 1576, 1889, 1970, 2364, 2758, 2955, 3778, 3940, 4137, 4728, 5516, 5667, 5910, 6895, 7556, 7880, 8274, 9445, 11032, 11334, 11820, 13223, 13790, 15112, 16548, 18890, 20685, 22668, 23640, 26446, 27580, 28335, 33096, 37780, 39669, 41370, 45336, 52892, 55160, 56670, 66115, 75560, 79338, 82740, 105784, 113340, 132230, 158676, 165480, 198345, 226680, 264460, 317352, 372133, 396690, 528920, 744266, 793380, 1116399, 1488532, 1586760, 1860665, 2232798, 2604931, 2977064, 3721330, 4465596, 5209862, 5581995, 7442660, 7814793, 8931192, 10419724, 11163990, 13024655, 14885320, 15629586, 20839448, 22327980, 26049310, 31259172, 39073965, 44655960, 52098620, 62518344, 78147930, 104197240, 156295860, 312591720]

約数ペア:

[(1, 312591720), (2, 156295860), (3, 104197240), (4, 78147930), (5, 62518344), (6, 52098620), (7, 44655960), (8, 39073965), (10, 31259172), (12, 26049310), (14, 22327980), (15, 20839448), (20, 15629586), (21, 14885320), (24, 13024655), (28, 11163990), (30, 10419724), (35, 8931192), (40, 7814793), (42, 7442660), (56, 5581995), (60, 5209862), (70, 4465596), (84, 3721330), (105, 2977064), (120, 2604931), (140, 2232798), (168, 1860665), (197, 1586760), (210, 1488532), (280, 1116399), (394, 793380), (420, 744266), (591, 528920), (788, 396690), (840, 372133), (985, 317352), (1182, 264460), (1379, 226680), (1576, 198345), (1889, 165480), (1970, 158676), (2364, 132230), (2758, 113340), (2955, 105784), (3778, 82740), (3940, 79338), (4137, 75560), (4728, 66115), (5516, 56670), (5667, 55160), (5910, 52892), (6895, 45336), (7556, 41370), (7880, 39669), (8274, 37780), (9445, 33096), (11032, 28335), (11334, 27580), (11820, 26446), (13223, 23640), (13790, 22668), (15112, 20685), (16548, 18890)]