123944680

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:794

約数の個数: 64

約数和(自身を含む): 287481600

約数和(自身を除く): 163536920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 79, 122, 158, 244, 305, 316, 395, 488, 610, 632, 643, 790, 1220, 1286, 1580, 2440, 2572, 3160, 3215, 4819, 5144, 6430, 9638, 12860, 19276, 24095, 25720, 38552, 39223, 48190, 50797, 78446, 96380, 101594, 156892, 192760, 196115, 203188, 253985, 313784, 392230, 406376, 507970, 784460, 1015940, 1568920, 2031880, 3098617, 6197234, 12394468, 15493085, 24788936, 30986170, 61972340, 123944680]

約数ペア:

[(1, 123944680), (2, 61972340), (4, 30986170), (5, 24788936), (8, 15493085), (10, 12394468), (20, 6197234), (40, 3098617), (61, 2031880), (79, 1568920), (122, 1015940), (158, 784460), (244, 507970), (305, 406376), (316, 392230), (395, 313784), (488, 253985), (610, 203188), (632, 196115), (643, 192760), (790, 156892), (1220, 101594), (1286, 96380), (1580, 78446), (2440, 50797), (2572, 48190), (3160, 39223), (3215, 38552), (4819, 25720), (5144, 24095), (6430, 19276), (9638, 12860)]