20778120

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1$

素因数の和:98

約数の個数: 240

約数和(自身を含む): 78211980

約数和(自身を除く): 57433860

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 53, 54, 55, 60, 66, 72, 81, 88, 90, 99, 106, 108, 110, 120, 121, 132, 135, 159, 162, 165, 180, 198, 212, 216, 220, 242, 264, 265, 270, 297, 318, 324, 330, 360, 363, 396, 405, 424, 440, 477, 484, 495, 530, 540, 583, 594, 605, 636, 648, 660, 726, 792, 795, 810, 891, 954, 968, 990, 1060, 1080, 1089, 1166, 1188, 1210, 1272, 1320, 1431, 1452, 1485, 1590, 1620, 1749, 1782, 1815, 1908, 1980, 2120, 2178, 2332, 2376, 2385, 2420, 2862, 2904, 2915, 2970, 3180, 3240, 3267, 3498, 3564, 3630, 3816, 3960, 4293, 4356, 4455, 4664, 4770, 4840, 5247, 5445, 5724, 5830, 5940, 6360, 6413, 6534, 6996, 7128, 7155, 7260, 8586, 8712, 8745, 8910, 9540, 9801, 10494, 10890, 11448, 11660, 11880, 12826, 13068, 13992, 14310, 14520, 15741, 16335, 17172, 17490, 17820, 19080, 19239, 19602, 20988, 21465, 21780, 23320, 25652, 26136, 26235, 28620, 31482, 32065, 32670, 34344, 34980, 35640, 38478, 39204, 41976, 42930, 43560, 47223, 49005, 51304, 52470, 57240, 57717, 62964, 64130, 65340, 69960, 76956, 78408, 78705, 85860, 94446, 96195, 98010, 104940, 115434, 125928, 128260, 130680, 153912, 157410, 171720, 173151, 188892, 192390, 196020, 209880, 230868, 236115, 256520, 288585, 314820, 346302, 377784, 384780, 392040, 461736, 472230, 519453, 577170, 629640, 692604, 769560, 865755, 944460, 1038906, 1154340, 1385208, 1731510, 1888920, 2077812, 2308680, 2597265, 3463020, 4155624, 5194530, 6926040, 10389060, 20778120]

約数ペア:

[(1, 20778120), (2, 10389060), (3, 6926040), (4, 5194530), (5, 4155624), (6, 3463020), (8, 2597265), (9, 2308680), (10, 2077812), (11, 1888920), (12, 1731510), (15, 1385208), (18, 1154340), (20, 1038906), (22, 944460), (24, 865755), (27, 769560), (30, 692604), (33, 629640), (36, 577170), (40, 519453), (44, 472230), (45, 461736), (53, 392040), (54, 384780), (55, 377784), (60, 346302), (66, 314820), (72, 288585), (81, 256520), (88, 236115), (90, 230868), (99, 209880), (106, 196020), (108, 192390), (110, 188892), (120, 173151), (121, 171720), (132, 157410), (135, 153912), (159, 130680), (162, 128260), (165, 125928), (180, 115434), (198, 104940), (212, 98010), (216, 96195), (220, 94446), (242, 85860), (264, 78705), (265, 78408), (270, 76956), (297, 69960), (318, 65340), (324, 64130), (330, 62964), (360, 57717), (363, 57240), (396, 52470), (405, 51304), (424, 49005), (440, 47223), (477, 43560), (484, 42930), (495, 41976), (530, 39204), (540, 38478), (583, 35640), (594, 34980), (605, 34344), (636, 32670), (648, 32065), (660, 31482), (726, 28620), (792, 26235), (795, 26136), (810, 25652), (891, 23320), (954, 21780), (968, 21465), (990, 20988), (1060, 19602), (1080, 19239), (1089, 19080), (1166, 17820), (1188, 17490), (1210, 17172), (1272, 16335), (1320, 15741), (1431, 14520), (1452, 14310), (1485, 13992), (1590, 13068), (1620, 12826), (1749, 11880), (1782, 11660), (1815, 11448), (1908, 10890), (1980, 10494), (2120, 9801), (2178, 9540), (2332, 8910), (2376, 8745), (2385, 8712), (2420, 8586), (2862, 7260), (2904, 7155), (2915, 7128), (2970, 6996), (3180, 6534), (3240, 6413), (3267, 6360), (3498, 5940), (3564, 5830), (3630, 5724), (3816, 5445), (3960, 5247), (4293, 4840), (4356, 4770), (4455, 4664)]