18539640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{1051}}^1$

素因数の和:1082

約数の個数: 144

約数和(自身を含む): 70157880

約数和(自身を除く): 51618240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1051, 1176, 1260, 1470, 1764, 1960, 2102, 2205, 2520, 2940, 3153, 3528, 4204, 4410, 5255, 5880, 6306, 7357, 8408, 8820, 9459, 10510, 12612, 14714, 15765, 17640, 18918, 21020, 22071, 25224, 29428, 31530, 36785, 37836, 42040, 44142, 47295, 51499, 58856, 63060, 66213, 73570, 75672, 88284, 94590, 102998, 110355, 126120, 132426, 147140, 154497, 176568, 189180, 205996, 220710, 257495, 264852, 294280, 308994, 331065, 378360, 411992, 441420, 463491, 514990, 529704, 617988, 662130, 772485, 882840, 926982, 1029980, 1235976, 1324260, 1544970, 1853964, 2059960, 2317455, 2648520, 3089940, 3707928, 4634910, 6179880, 9269820, 18539640]

約数ペア:

[(1, 18539640), (2, 9269820), (3, 6179880), (4, 4634910), (5, 3707928), (6, 3089940), (7, 2648520), (8, 2317455), (9, 2059960), (10, 1853964), (12, 1544970), (14, 1324260), (15, 1235976), (18, 1029980), (20, 926982), (21, 882840), (24, 772485), (28, 662130), (30, 617988), (35, 529704), (36, 514990), (40, 463491), (42, 441420), (45, 411992), (49, 378360), (56, 331065), (60, 308994), (63, 294280), (70, 264852), (72, 257495), (84, 220710), (90, 205996), (98, 189180), (105, 176568), (120, 154497), (126, 147140), (140, 132426), (147, 126120), (168, 110355), (180, 102998), (196, 94590), (210, 88284), (245, 75672), (252, 73570), (280, 66213), (294, 63060), (315, 58856), (360, 51499), (392, 47295), (420, 44142), (441, 42040), (490, 37836), (504, 36785), (588, 31530), (630, 29428), (735, 25224), (840, 22071), (882, 21020), (980, 18918), (1051, 17640), (1176, 15765), (1260, 14714), (1470, 12612), (1764, 10510), (1960, 9459), (2102, 8820), (2205, 8408), (2520, 7357), (2940, 6306), (3153, 5880), (3528, 5255), (4204, 4410)]