28963900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:308

約数の個数: 108

約数和(自身を含む): 76588848

約数和(自身を除く): 47624948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 49, 50, 70, 92, 98, 100, 115, 140, 161, 175, 196, 230, 245, 257, 322, 350, 460, 490, 514, 575, 644, 700, 805, 980, 1028, 1127, 1150, 1225, 1285, 1610, 1799, 2254, 2300, 2450, 2570, 3220, 3598, 4025, 4508, 4900, 5140, 5635, 5911, 6425, 7196, 8050, 8995, 11270, 11822, 12593, 12850, 16100, 17990, 22540, 23644, 25186, 25700, 28175, 29555, 35980, 41377, 44975, 50372, 56350, 59110, 62965, 82754, 89950, 112700, 118220, 125930, 147775, 165508, 179900, 206885, 251860, 289639, 295550, 314825, 413770, 579278, 591100, 629650, 827540, 1034425, 1158556, 1259300, 1448195, 2068850, 2896390, 4137700, 5792780, 7240975, 14481950, 28963900]

約数ペア:

[(1, 28963900), (2, 14481950), (4, 7240975), (5, 5792780), (7, 4137700), (10, 2896390), (14, 2068850), (20, 1448195), (23, 1259300), (25, 1158556), (28, 1034425), (35, 827540), (46, 629650), (49, 591100), (50, 579278), (70, 413770), (92, 314825), (98, 295550), (100, 289639), (115, 251860), (140, 206885), (161, 179900), (175, 165508), (196, 147775), (230, 125930), (245, 118220), (257, 112700), (322, 89950), (350, 82754), (460, 62965), (490, 59110), (514, 56350), (575, 50372), (644, 44975), (700, 41377), (805, 35980), (980, 29555), (1028, 28175), (1127, 25700), (1150, 25186), (1225, 23644), (1285, 22540), (1610, 17990), (1799, 16100), (2254, 12850), (2300, 12593), (2450, 11822), (2570, 11270), (3220, 8995), (3598, 8050), (4025, 7196), (4508, 6425), (4900, 5911), (5140, 5635)]