31432520

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 86400000

約数和(自身を除く): 54967480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 49, 56, 58, 70, 79, 98, 116, 140, 145, 158, 196, 203, 232, 245, 280, 290, 316, 343, 392, 395, 406, 490, 553, 580, 632, 686, 790, 812, 980, 1015, 1106, 1160, 1372, 1421, 1580, 1624, 1715, 1960, 2030, 2212, 2291, 2744, 2765, 2842, 3160, 3430, 3871, 4060, 4424, 4582, 5530, 5684, 6860, 7105, 7742, 8120, 9164, 9947, 11060, 11368, 11455, 13720, 14210, 15484, 16037, 18328, 19355, 19894, 22120, 22910, 27097, 28420, 30968, 32074, 38710, 39788, 45820, 49735, 54194, 56840, 64148, 77420, 79576, 80185, 91640, 99470, 108388, 112259, 128296, 135485, 154840, 160370, 198940, 216776, 224518, 270970, 320740, 397880, 449036, 541940, 561295, 641480, 785813, 898072, 1083880, 1122590, 1571626, 2245180, 3143252, 3929065, 4490360, 6286504, 7858130, 15716260, 31432520]

約数ペア:

[(1, 31432520), (2, 15716260), (4, 7858130), (5, 6286504), (7, 4490360), (8, 3929065), (10, 3143252), (14, 2245180), (20, 1571626), (28, 1122590), (29, 1083880), (35, 898072), (40, 785813), (49, 641480), (56, 561295), (58, 541940), (70, 449036), (79, 397880), (98, 320740), (116, 270970), (140, 224518), (145, 216776), (158, 198940), (196, 160370), (203, 154840), (232, 135485), (245, 128296), (280, 112259), (290, 108388), (316, 99470), (343, 91640), (392, 80185), (395, 79576), (406, 77420), (490, 64148), (553, 56840), (580, 54194), (632, 49735), (686, 45820), (790, 39788), (812, 38710), (980, 32074), (1015, 30968), (1106, 28420), (1160, 27097), (1372, 22910), (1421, 22120), (1580, 19894), (1624, 19355), (1715, 18328), (1960, 16037), (2030, 15484), (2212, 14210), (2291, 13720), (2744, 11455), (2765, 11368), (2842, 11060), (3160, 9947), (3430, 9164), (3871, 8120), (4060, 7742), (4424, 7105), (4582, 6860), (5530, 5684)]