1851567380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:538

約数の個数: 144

約数和(自身を含む): 4462553088

約数和(自身を除く): 2610985708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 41, 52, 62, 65, 82, 124, 130, 155, 164, 169, 205, 260, 310, 338, 403, 410, 431, 533, 620, 676, 806, 820, 845, 862, 1066, 1271, 1612, 1690, 1724, 2015, 2132, 2155, 2542, 2665, 3380, 4030, 4310, 5084, 5239, 5330, 5603, 6355, 6929, 8060, 8620, 10478, 10660, 11206, 12710, 13361, 13858, 16523, 17671, 20956, 22412, 25420, 26195, 26722, 27716, 28015, 33046, 34645, 35342, 52390, 53444, 56030, 66092, 66805, 69290, 70684, 72839, 82615, 88355, 104780, 112060, 133610, 138580, 145678, 165230, 173693, 176710, 214799, 229723, 267220, 291356, 330460, 347386, 353420, 364195, 429598, 459446, 547801, 694772, 728390, 859196, 868465, 918892, 1073995, 1095602, 1148615, 1456780, 1736930, 2147990, 2191204, 2258009, 2297230, 2739005, 2986399, 3473860, 4295980, 4516018, 4594460, 5478010, 5972798, 7121413, 9032036, 10956020, 11290045, 11945596, 14242826, 14931995, 22580090, 28485652, 29863990, 35607065, 45160180, 59727980, 71214130, 92578369, 142428260, 185156738, 370313476, 462891845, 925783690, 1851567380]

約数ペア:

[(1, 1851567380), (2, 925783690), (4, 462891845), (5, 370313476), (10, 185156738), (13, 142428260), (20, 92578369), (26, 71214130), (31, 59727980), (41, 45160180), (52, 35607065), (62, 29863990), (65, 28485652), (82, 22580090), (124, 14931995), (130, 14242826), (155, 11945596), (164, 11290045), (169, 10956020), (205, 9032036), (260, 7121413), (310, 5972798), (338, 5478010), (403, 4594460), (410, 4516018), (431, 4295980), (533, 3473860), (620, 2986399), (676, 2739005), (806, 2297230), (820, 2258009), (845, 2191204), (862, 2147990), (1066, 1736930), (1271, 1456780), (1612, 1148615), (1690, 1095602), (1724, 1073995), (2015, 918892), (2132, 868465), (2155, 859196), (2542, 728390), (2665, 694772), (3380, 547801), (4030, 459446), (4310, 429598), (5084, 364195), (5239, 353420), (5330, 347386), (5603, 330460), (6355, 291356), (6929, 267220), (8060, 229723), (8620, 214799), (10478, 176710), (10660, 173693), (11206, 165230), (12710, 145678), (13361, 138580), (13858, 133610), (16523, 112060), (17671, 104780), (20956, 88355), (22412, 82615), (25420, 72839), (26195, 70684), (26722, 69290), (27716, 66805), (28015, 66092), (33046, 56030), (34645, 53444), (35342, 52390)]