28497040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:137

約数の個数: 160

約数和(自身を含む): 80994816

約数和(自身を除く): 52497776

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 47, 52, 53, 55, 65, 80, 88, 94, 104, 106, 110, 130, 143, 176, 188, 208, 212, 220, 235, 260, 265, 286, 376, 424, 440, 470, 517, 520, 530, 572, 583, 611, 689, 715, 752, 848, 880, 940, 1034, 1040, 1060, 1144, 1166, 1222, 1378, 1430, 1880, 2068, 2120, 2288, 2332, 2444, 2491, 2585, 2756, 2860, 2915, 3055, 3445, 3760, 4136, 4240, 4664, 4888, 4982, 5170, 5512, 5720, 5830, 6110, 6721, 6890, 7579, 8272, 9328, 9776, 9964, 10340, 11024, 11440, 11660, 12220, 12455, 13442, 13780, 15158, 19928, 20680, 23320, 24440, 24910, 26884, 27401, 27560, 30316, 32383, 33605, 37895, 39856, 41360, 46640, 48880, 49820, 53768, 54802, 55120, 60632, 64766, 67210, 75790, 99640, 107536, 109604, 121264, 129532, 134420, 137005, 151580, 161915, 199280, 219208, 259064, 268840, 274010, 303160, 323830, 356213, 438416, 518128, 537680, 548020, 606320, 647660, 712426, 1096040, 1295320, 1424852, 1781065, 2192080, 2590640, 2849704, 3562130, 5699408, 7124260, 14248520, 28497040]

約数ペア:

[(1, 28497040), (2, 14248520), (4, 7124260), (5, 5699408), (8, 3562130), (10, 2849704), (11, 2590640), (13, 2192080), (16, 1781065), (20, 1424852), (22, 1295320), (26, 1096040), (40, 712426), (44, 647660), (47, 606320), (52, 548020), (53, 537680), (55, 518128), (65, 438416), (80, 356213), (88, 323830), (94, 303160), (104, 274010), (106, 268840), (110, 259064), (130, 219208), (143, 199280), (176, 161915), (188, 151580), (208, 137005), (212, 134420), (220, 129532), (235, 121264), (260, 109604), (265, 107536), (286, 99640), (376, 75790), (424, 67210), (440, 64766), (470, 60632), (517, 55120), (520, 54802), (530, 53768), (572, 49820), (583, 48880), (611, 46640), (689, 41360), (715, 39856), (752, 37895), (848, 33605), (880, 32383), (940, 30316), (1034, 27560), (1040, 27401), (1060, 26884), (1144, 24910), (1166, 24440), (1222, 23320), (1378, 20680), (1430, 19928), (1880, 15158), (2068, 13780), (2120, 13442), (2288, 12455), (2332, 12220), (2444, 11660), (2491, 11440), (2585, 11024), (2756, 10340), (2860, 9964), (2915, 9776), (3055, 9328), (3445, 8272), (3760, 7579), (4136, 6890), (4240, 6721), (4664, 6110), (4888, 5830), (4982, 5720), (5170, 5512)]