21324840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 69120000

約数和(自身を除く): 47795160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 47, 57, 60, 76, 94, 95, 114, 120, 141, 152, 188, 190, 199, 228, 235, 282, 285, 376, 380, 398, 456, 470, 564, 570, 597, 705, 760, 796, 893, 940, 995, 1128, 1140, 1194, 1410, 1592, 1786, 1880, 1990, 2280, 2388, 2679, 2820, 2985, 3572, 3781, 3980, 4465, 4776, 5358, 5640, 5970, 7144, 7562, 7960, 8930, 9353, 10716, 11343, 11940, 13395, 15124, 17860, 18706, 18905, 21432, 22686, 23880, 26790, 28059, 30248, 35720, 37412, 37810, 45372, 46765, 53580, 56118, 56715, 74824, 75620, 90744, 93530, 107160, 112236, 113430, 140295, 151240, 177707, 187060, 224472, 226860, 280590, 355414, 374120, 453720, 533121, 561180, 710828, 888535, 1066242, 1122360, 1421656, 1777070, 2132484, 2665605, 3554140, 4264968, 5331210, 7108280, 10662420, 21324840]

約数ペア:

[(1, 21324840), (2, 10662420), (3, 7108280), (4, 5331210), (5, 4264968), (6, 3554140), (8, 2665605), (10, 2132484), (12, 1777070), (15, 1421656), (19, 1122360), (20, 1066242), (24, 888535), (30, 710828), (38, 561180), (40, 533121), (47, 453720), (57, 374120), (60, 355414), (76, 280590), (94, 226860), (95, 224472), (114, 187060), (120, 177707), (141, 151240), (152, 140295), (188, 113430), (190, 112236), (199, 107160), (228, 93530), (235, 90744), (282, 75620), (285, 74824), (376, 56715), (380, 56118), (398, 53580), (456, 46765), (470, 45372), (564, 37810), (570, 37412), (597, 35720), (705, 30248), (760, 28059), (796, 26790), (893, 23880), (940, 22686), (995, 21432), (1128, 18905), (1140, 18706), (1194, 17860), (1410, 15124), (1592, 13395), (1786, 11940), (1880, 11343), (1990, 10716), (2280, 9353), (2388, 8930), (2679, 7960), (2820, 7562), (2985, 7144), (3572, 5970), (3781, 5640), (3980, 5358), (4465, 4776)]