3991840

素因数分解:

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

素因数の和:485

約数の個数: 48

約数和(自身を含む): 9608760

約数和(自身を除く): 5616920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 409, 488, 610, 818, 976, 1220, 1636, 1952, 2045, 2440, 3272, 4090, 4880, 6544, 8180, 9760, 13088, 16360, 24949, 32720, 49898, 65440, 99796, 124745, 199592, 249490, 399184, 498980, 798368, 997960, 1995920, 3991840]

約数ペア:

[(1, 3991840), (2, 1995920), (4, 997960), (5, 798368), (8, 498980), (10, 399184), (16, 249490), (20, 199592), (32, 124745), (40, 99796), (61, 65440), (80, 49898), (122, 32720), (160, 24949), (244, 16360), (305, 13088), (409, 9760), (488, 8180), (610, 6544), (818, 4880), (976, 4090), (1220, 3272), (1636, 2440), (1952, 2045)]