31689280

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 168

約数和(自身を含む): 91732608

約数和(自身を除く): 60043328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 47, 49, 56, 64, 70, 80, 86, 94, 98, 112, 140, 160, 172, 188, 196, 215, 224, 235, 245, 280, 301, 320, 329, 344, 376, 392, 430, 448, 470, 490, 560, 602, 658, 688, 752, 784, 860, 940, 980, 1120, 1204, 1316, 1376, 1504, 1505, 1568, 1645, 1720, 1880, 1960, 2021, 2107, 2240, 2303, 2408, 2632, 2752, 3008, 3010, 3136, 3290, 3440, 3760, 3920, 4042, 4214, 4606, 4816, 5264, 6020, 6580, 6880, 7520, 7840, 8084, 8428, 9212, 9632, 10105, 10528, 10535, 11515, 12040, 13160, 13760, 14147, 15040, 15680, 16168, 16856, 18424, 19264, 20210, 21056, 21070, 23030, 24080, 26320, 28294, 32336, 33712, 36848, 40420, 42140, 46060, 48160, 52640, 56588, 64672, 67424, 70735, 73696, 80840, 84280, 92120, 96320, 99029, 105280, 113176, 129344, 134848, 141470, 147392, 161680, 168560, 184240, 198058, 226352, 282940, 323360, 337120, 368480, 396116, 452704, 495145, 565880, 646720, 674240, 736960, 792232, 905408, 990290, 1131760, 1584464, 1980580, 2263520, 3168928, 3961160, 4527040, 6337856, 7922320, 15844640, 31689280]

約数ペア:

[(1, 31689280), (2, 15844640), (4, 7922320), (5, 6337856), (7, 4527040), (8, 3961160), (10, 3168928), (14, 2263520), (16, 1980580), (20, 1584464), (28, 1131760), (32, 990290), (35, 905408), (40, 792232), (43, 736960), (47, 674240), (49, 646720), (56, 565880), (64, 495145), (70, 452704), (80, 396116), (86, 368480), (94, 337120), (98, 323360), (112, 282940), (140, 226352), (160, 198058), (172, 184240), (188, 168560), (196, 161680), (215, 147392), (224, 141470), (235, 134848), (245, 129344), (280, 113176), (301, 105280), (320, 99029), (329, 96320), (344, 92120), (376, 84280), (392, 80840), (430, 73696), (448, 70735), (470, 67424), (490, 64672), (560, 56588), (602, 52640), (658, 48160), (688, 46060), (752, 42140), (784, 40420), (860, 36848), (940, 33712), (980, 32336), (1120, 28294), (1204, 26320), (1316, 24080), (1376, 23030), (1504, 21070), (1505, 21056), (1568, 20210), (1645, 19264), (1720, 18424), (1880, 16856), (1960, 16168), (2021, 15680), (2107, 15040), (2240, 14147), (2303, 13760), (2408, 13160), (2632, 12040), (2752, 11515), (3008, 10535), (3010, 10528), (3136, 10105), (3290, 9632), (3440, 9212), (3760, 8428), (3920, 8084), (4042, 7840), (4214, 7520), (4606, 6880), (4816, 6580), (5264, 6020)]