28031004

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{383}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 75479040

約数和(自身を除く): 47448036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 107, 114, 171, 214, 228, 321, 342, 383, 428, 642, 684, 766, 963, 1149, 1284, 1532, 1926, 2033, 2298, 3447, 3852, 4066, 4596, 6099, 6894, 7277, 8132, 12198, 13788, 14554, 18297, 21831, 24396, 29108, 36594, 40981, 43662, 65493, 73188, 81962, 87324, 122943, 130986, 163924, 245886, 261972, 368829, 491772, 737658, 778639, 1475316, 1557278, 2335917, 3114556, 4671834, 7007751, 9343668, 14015502, 28031004]

約数ペア:

[(1, 28031004), (2, 14015502), (3, 9343668), (4, 7007751), (6, 4671834), (9, 3114556), (12, 2335917), (18, 1557278), (19, 1475316), (36, 778639), (38, 737658), (57, 491772), (76, 368829), (107, 261972), (114, 245886), (171, 163924), (214, 130986), (228, 122943), (321, 87324), (342, 81962), (383, 73188), (428, 65493), (642, 43662), (684, 40981), (766, 36594), (963, 29108), (1149, 24396), (1284, 21831), (1532, 18297), (1926, 14554), (2033, 13788), (2298, 12198), (3447, 8132), (3852, 7277), (4066, 6894), (4596, 6099)]