78677800

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{6449}}^1$

素因数の和:6526

約数の個数: 48

約数和(自身を含む): 185953500

約数和(自身を除く): 107275700

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 200, 244, 305, 488, 610, 1220, 1525, 2440, 3050, 6100, 6449, 12200, 12898, 25796, 32245, 51592, 64490, 128980, 161225, 257960, 322450, 393389, 644900, 786778, 1289800, 1573556, 1966945, 3147112, 3933890, 7867780, 9834725, 15735560, 19669450, 39338900, 78677800]

約数ペア:

[(1, 78677800), (2, 39338900), (4, 19669450), (5, 15735560), (8, 9834725), (10, 7867780), (20, 3933890), (25, 3147112), (40, 1966945), (50, 1573556), (61, 1289800), (100, 786778), (122, 644900), (200, 393389), (244, 322450), (305, 257960), (488, 161225), (610, 128980), (1220, 64490), (1525, 51592), (2440, 32245), (3050, 25796), (6100, 12898), (6449, 12200)]