217742520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1831}}^1$

素因数の和:2836

約数の個数: 64

約数和(自身を含む): 654243840

約数和(自身を除く): 436501320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 991, 1831, 1982, 2973, 3662, 3964, 4955, 5493, 5946, 7324, 7928, 9155, 9910, 10986, 11892, 14648, 14865, 18310, 19820, 21972, 23784, 27465, 29730, 36620, 39640, 43944, 54930, 59460, 73240, 109860, 118920, 219720, 1814521, 3629042, 5443563, 7258084, 9072605, 10887126, 14516168, 18145210, 21774252, 27217815, 36290420, 43548504, 54435630, 72580840, 108871260, 217742520]

約数ペア:

[(1, 217742520), (2, 108871260), (3, 72580840), (4, 54435630), (5, 43548504), (6, 36290420), (8, 27217815), (10, 21774252), (12, 18145210), (15, 14516168), (20, 10887126), (24, 9072605), (30, 7258084), (40, 5443563), (60, 3629042), (120, 1814521), (991, 219720), (1831, 118920), (1982, 109860), (2973, 73240), (3662, 59460), (3964, 54930), (4955, 43944), (5493, 39640), (5946, 36620), (7324, 29730), (7928, 27465), (9155, 23784), (9910, 21972), (10986, 19820), (11892, 18310), (14648, 14865)]