2018712280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:573

約数の個数: 128

約数和(自身を含む): 5000889600

約数和(自身を除く): 2982177320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 157, 158, 260, 313, 314, 316, 395, 520, 626, 628, 632, 785, 790, 1027, 1252, 1256, 1565, 1570, 1580, 2041, 2054, 2504, 3130, 3140, 3160, 4069, 4082, 4108, 5135, 6260, 6280, 8138, 8164, 8216, 10205, 10270, 12403, 12520, 16276, 16328, 20345, 20410, 20540, 24727, 24806, 32552, 40690, 40820, 41080, 49141, 49454, 49612, 62015, 81380, 81640, 98282, 98908, 99224, 123635, 124030, 161239, 162760, 196564, 197816, 245705, 247270, 248060, 321451, 322478, 393128, 491410, 494540, 496120, 638833, 642902, 644956, 806195, 982820, 989080, 1277666, 1285804, 1289912, 1607255, 1612390, 1965640, 2555332, 2571608, 3194165, 3214510, 3224780, 3882139, 5110664, 6388330, 6429020, 6449560, 7764278, 12776660, 12858040, 15528556, 19410695, 25553320, 31057112, 38821390, 50467807, 77642780, 100935614, 155285560, 201871228, 252339035, 403742456, 504678070, 1009356140, 2018712280]

約数ペア:

[(1, 2018712280), (2, 1009356140), (4, 504678070), (5, 403742456), (8, 252339035), (10, 201871228), (13, 155285560), (20, 100935614), (26, 77642780), (40, 50467807), (52, 38821390), (65, 31057112), (79, 25553320), (104, 19410695), (130, 15528556), (157, 12858040), (158, 12776660), (260, 7764278), (313, 6449560), (314, 6429020), (316, 6388330), (395, 5110664), (520, 3882139), (626, 3224780), (628, 3214510), (632, 3194165), (785, 2571608), (790, 2555332), (1027, 1965640), (1252, 1612390), (1256, 1607255), (1565, 1289912), (1570, 1285804), (1580, 1277666), (2041, 989080), (2054, 982820), (2504, 806195), (3130, 644956), (3140, 642902), (3160, 638833), (4069, 496120), (4082, 494540), (4108, 491410), (5135, 393128), (6260, 322478), (6280, 321451), (8138, 248060), (8164, 247270), (8216, 245705), (10205, 197816), (10270, 196564), (12403, 162760), (12520, 161239), (16276, 124030), (16328, 123635), (20345, 99224), (20410, 98908), (20540, 98282), (24727, 81640), (24806, 81380), (32552, 62015), (40690, 49612), (40820, 49454), (41080, 49141)]