398940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 1145760

約数和(自身を除く): 746820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 109, 122, 183, 218, 244, 305, 327, 366, 436, 545, 610, 654, 732, 915, 1090, 1220, 1308, 1635, 1830, 2180, 3270, 3660, 6540, 6649, 13298, 19947, 26596, 33245, 39894, 66490, 79788, 99735, 132980, 199470, 398940]

約数ペア:

[(1, 398940), (2, 199470), (3, 132980), (4, 99735), (5, 79788), (6, 66490), (10, 39894), (12, 33245), (15, 26596), (20, 19947), (30, 13298), (60, 6649), (61, 6540), (109, 3660), (122, 3270), (183, 2180), (218, 1830), (244, 1635), (305, 1308), (327, 1220), (366, 1090), (436, 915), (545, 732), (610, 654)]