28203428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 60056640

約数和(自身を除く): 31853212

約数列:

[1, 2, 4, 11, 22, 23, 29, 31, 44, 46, 58, 62, 92, 116, 124, 253, 319, 341, 506, 638, 667, 682, 713, 899, 961, 1012, 1276, 1334, 1364, 1426, 1798, 1922, 2668, 2852, 3596, 3844, 7337, 7843, 9889, 10571, 14674, 15686, 19778, 20677, 21142, 22103, 27869, 29348, 31372, 39556, 41354, 42284, 44206, 55738, 82708, 88412, 111476, 227447, 243133, 306559, 454894, 486266, 613118, 640987, 909788, 972532, 1226236, 1281974, 2563948, 7050857, 14101714, 28203428]

約数ペア:

[(1, 28203428), (2, 14101714), (4, 7050857), (11, 2563948), (22, 1281974), (23, 1226236), (29, 972532), (31, 909788), (44, 640987), (46, 613118), (58, 486266), (62, 454894), (92, 306559), (116, 243133), (124, 227447), (253, 111476), (319, 88412), (341, 82708), (506, 55738), (638, 44206), (667, 42284), (682, 41354), (713, 39556), (899, 31372), (961, 29348), (1012, 27869), (1276, 22103), (1334, 21142), (1364, 20677), (1426, 19778), (1798, 15686), (1922, 14674), (2668, 10571), (2852, 9889), (3596, 7843), (3844, 7337)]