1995920

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:483

約数の個数: 40

約数和(自身を含む): 4728120

約数和(自身を除く): 2732200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 409, 488, 610, 818, 976, 1220, 1636, 2045, 2440, 3272, 4090, 4880, 6544, 8180, 16360, 24949, 32720, 49898, 99796, 124745, 199592, 249490, 399184, 498980, 997960, 1995920]

約数ペア:

[(1, 1995920), (2, 997960), (4, 498980), (5, 399184), (8, 249490), (10, 199592), (16, 124745), (20, 99796), (40, 49898), (61, 32720), (80, 24949), (122, 16360), (244, 8180), (305, 6544), (409, 4880), (488, 4090), (610, 3272), (818, 2440), (976, 2045), (1220, 1636)]