20509560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2477}}^1$

素因数の和:2517

約数の個数: 96

約数和(自身を含む): 69582240

約数和(自身を除く): 49072680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2477, 2760, 4140, 4954, 7431, 8280, 9908, 12385, 14862, 19816, 22293, 24770, 29724, 37155, 44586, 49540, 56971, 59448, 74310, 89172, 99080, 111465, 113942, 148620, 170913, 178344, 222930, 227884, 284855, 297240, 341826, 445860, 455768, 512739, 569710, 683652, 854565, 891720, 1025478, 1139420, 1367304, 1709130, 2050956, 2278840, 2563695, 3418260, 4101912, 5127390, 6836520, 10254780, 20509560]

約数ペア:

[(1, 20509560), (2, 10254780), (3, 6836520), (4, 5127390), (5, 4101912), (6, 3418260), (8, 2563695), (9, 2278840), (10, 2050956), (12, 1709130), (15, 1367304), (18, 1139420), (20, 1025478), (23, 891720), (24, 854565), (30, 683652), (36, 569710), (40, 512739), (45, 455768), (46, 445860), (60, 341826), (69, 297240), (72, 284855), (90, 227884), (92, 222930), (115, 178344), (120, 170913), (138, 148620), (180, 113942), (184, 111465), (207, 99080), (230, 89172), (276, 74310), (345, 59448), (360, 56971), (414, 49540), (460, 44586), (552, 37155), (690, 29724), (828, 24770), (920, 22293), (1035, 19816), (1380, 14862), (1656, 12385), (2070, 9908), (2477, 8280), (2760, 7431), (4140, 4954)]