19916040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 128

約数和(自身を含む): 63504000

約数和(自身を除く): 43587960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 59, 60, 87, 97, 116, 118, 120, 145, 174, 177, 194, 232, 236, 290, 291, 295, 348, 354, 388, 435, 472, 485, 580, 582, 590, 696, 708, 776, 870, 885, 970, 1160, 1164, 1180, 1416, 1455, 1711, 1740, 1770, 1940, 2328, 2360, 2813, 2910, 3422, 3480, 3540, 3880, 5133, 5626, 5723, 5820, 6844, 7080, 8439, 8555, 10266, 11252, 11446, 11640, 13688, 14065, 16878, 17110, 17169, 20532, 22504, 22892, 25665, 28130, 28615, 33756, 34220, 34338, 41064, 42195, 45784, 51330, 56260, 57230, 67512, 68440, 68676, 84390, 85845, 102660, 112520, 114460, 137352, 165967, 168780, 171690, 205320, 228920, 331934, 337560, 343380, 497901, 663868, 686760, 829835, 995802, 1327736, 1659670, 1991604, 2489505, 3319340, 3983208, 4979010, 6638680, 9958020, 19916040]

約数ペア:

[(1, 19916040), (2, 9958020), (3, 6638680), (4, 4979010), (5, 3983208), (6, 3319340), (8, 2489505), (10, 1991604), (12, 1659670), (15, 1327736), (20, 995802), (24, 829835), (29, 686760), (30, 663868), (40, 497901), (58, 343380), (59, 337560), (60, 331934), (87, 228920), (97, 205320), (116, 171690), (118, 168780), (120, 165967), (145, 137352), (174, 114460), (177, 112520), (194, 102660), (232, 85845), (236, 84390), (290, 68676), (291, 68440), (295, 67512), (348, 57230), (354, 56260), (388, 51330), (435, 45784), (472, 42195), (485, 41064), (580, 34338), (582, 34220), (590, 33756), (696, 28615), (708, 28130), (776, 25665), (870, 22892), (885, 22504), (970, 20532), (1160, 17169), (1164, 17110), (1180, 16878), (1416, 14065), (1455, 13688), (1711, 11640), (1740, 11446), (1770, 11252), (1940, 10266), (2328, 8555), (2360, 8439), (2813, 7080), (2910, 6844), (3422, 5820), (3480, 5723), (3540, 5626), (3880, 5133)]