166655380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{691}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 362718720

約数和(自身を除く): 196063340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 389, 620, 691, 778, 1382, 1556, 1945, 2764, 3455, 3890, 6910, 7780, 12059, 13820, 21421, 24118, 42842, 48236, 60295, 85684, 107105, 120590, 214210, 241180, 268799, 428420, 537598, 1075196, 1343995, 2687990, 5375980, 8332769, 16665538, 33331076, 41663845, 83327690, 166655380]

約数ペア:

[(1, 166655380), (2, 83327690), (4, 41663845), (5, 33331076), (10, 16665538), (20, 8332769), (31, 5375980), (62, 2687990), (124, 1343995), (155, 1075196), (310, 537598), (389, 428420), (620, 268799), (691, 241180), (778, 214210), (1382, 120590), (1556, 107105), (1945, 85684), (2764, 60295), (3455, 48236), (3890, 42842), (6910, 24118), (7780, 21421), (12059, 13820)]