19865928

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 57542400

約数和(自身を除く): 37676472

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 23, 24, 29, 34, 46, 51, 58, 68, 69, 73, 87, 92, 102, 116, 136, 138, 146, 174, 184, 204, 219, 232, 276, 292, 348, 391, 408, 438, 493, 552, 584, 667, 696, 782, 876, 986, 1173, 1241, 1334, 1479, 1564, 1679, 1752, 1972, 2001, 2117, 2346, 2482, 2668, 2958, 3128, 3358, 3723, 3944, 4002, 4234, 4692, 4964, 5037, 5336, 5916, 6351, 6716, 7446, 8004, 8468, 9384, 9928, 10074, 11339, 11832, 12702, 13432, 14892, 16008, 16936, 20148, 22678, 25404, 28543, 29784, 34017, 35989, 40296, 45356, 48691, 50808, 57086, 68034, 71978, 85629, 90712, 97382, 107967, 114172, 136068, 143956, 146073, 171258, 194764, 215934, 228344, 272136, 287912, 292146, 342516, 389528, 431868, 584292, 685032, 827747, 863736, 1168584, 1655494, 2483241, 3310988, 4966482, 6621976, 9932964, 19865928]

約数ペア:

[(1, 19865928), (2, 9932964), (3, 6621976), (4, 4966482), (6, 3310988), (8, 2483241), (12, 1655494), (17, 1168584), (23, 863736), (24, 827747), (29, 685032), (34, 584292), (46, 431868), (51, 389528), (58, 342516), (68, 292146), (69, 287912), (73, 272136), (87, 228344), (92, 215934), (102, 194764), (116, 171258), (136, 146073), (138, 143956), (146, 136068), (174, 114172), (184, 107967), (204, 97382), (219, 90712), (232, 85629), (276, 71978), (292, 68034), (348, 57086), (391, 50808), (408, 48691), (438, 45356), (493, 40296), (552, 35989), (584, 34017), (667, 29784), (696, 28543), (782, 25404), (876, 22678), (986, 20148), (1173, 16936), (1241, 16008), (1334, 14892), (1479, 13432), (1564, 12702), (1679, 11832), (1752, 11339), (1972, 10074), (2001, 9928), (2117, 9384), (2346, 8468), (2482, 8004), (2668, 7446), (2958, 6716), (3128, 6351), (3358, 5916), (3723, 5336), (3944, 5037), (4002, 4964), (4234, 4692)]