20591040

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:350

約数の個数: 112

約数和(自身を含む): 66385440

約数和(自身を除く): 45794400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 89, 96, 120, 160, 178, 192, 240, 241, 267, 320, 356, 445, 480, 482, 534, 712, 723, 890, 960, 964, 1068, 1205, 1335, 1424, 1446, 1780, 1928, 2136, 2410, 2670, 2848, 2892, 3560, 3615, 3856, 4272, 4820, 5340, 5696, 5784, 7120, 7230, 7712, 8544, 9640, 10680, 11568, 14240, 14460, 15424, 17088, 19280, 21360, 21449, 23136, 28480, 28920, 38560, 42720, 42898, 46272, 57840, 64347, 77120, 85440, 85796, 107245, 115680, 128694, 171592, 214490, 231360, 257388, 321735, 343184, 428980, 514776, 643470, 686368, 857960, 1029552, 1286940, 1372736, 1715920, 2059104, 2573880, 3431840, 4118208, 5147760, 6863680, 10295520, 20591040]

約数ペア:

[(1, 20591040), (2, 10295520), (3, 6863680), (4, 5147760), (5, 4118208), (6, 3431840), (8, 2573880), (10, 2059104), (12, 1715920), (15, 1372736), (16, 1286940), (20, 1029552), (24, 857960), (30, 686368), (32, 643470), (40, 514776), (48, 428980), (60, 343184), (64, 321735), (80, 257388), (89, 231360), (96, 214490), (120, 171592), (160, 128694), (178, 115680), (192, 107245), (240, 85796), (241, 85440), (267, 77120), (320, 64347), (356, 57840), (445, 46272), (480, 42898), (482, 42720), (534, 38560), (712, 28920), (723, 28480), (890, 23136), (960, 21449), (964, 21360), (1068, 19280), (1205, 17088), (1335, 15424), (1424, 14460), (1446, 14240), (1780, 11568), (1928, 10680), (2136, 9640), (2410, 8544), (2670, 7712), (2848, 7230), (2892, 7120), (3560, 5784), (3615, 5696), (3856, 5340), (4272, 4820)]