28420548

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^2$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 75367488

約数和(自身を除く): 46946940

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 89, 92, 138, 156, 178, 267, 276, 299, 356, 534, 598, 897, 1068, 1157, 1196, 1794, 2047, 2314, 3471, 3588, 4094, 4628, 6141, 6942, 7921, 8188, 12282, 13884, 15842, 23763, 24564, 26611, 31684, 47526, 53222, 79833, 95052, 102973, 106444, 159666, 182183, 205946, 308919, 319332, 364366, 411892, 546549, 617838, 728732, 1093098, 1235676, 2186196, 2368379, 4736758, 7105137, 9473516, 14210274, 28420548]

約数ペア:

[(1, 28420548), (2, 14210274), (3, 9473516), (4, 7105137), (6, 4736758), (12, 2368379), (13, 2186196), (23, 1235676), (26, 1093098), (39, 728732), (46, 617838), (52, 546549), (69, 411892), (78, 364366), (89, 319332), (92, 308919), (138, 205946), (156, 182183), (178, 159666), (267, 106444), (276, 102973), (299, 95052), (356, 79833), (534, 53222), (598, 47526), (897, 31684), (1068, 26611), (1157, 24564), (1196, 23763), (1794, 15842), (2047, 13884), (2314, 12282), (3471, 8188), (3588, 7921), (4094, 6942), (4628, 6141)]