78980360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{32369}}^1$

素因数の和:32441

約数の個数: 32

約数和(自身を含む): 180624600

約数和(自身を除く): 101644240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 32369, 64738, 129476, 161845, 258952, 323690, 647380, 1294760, 1974509, 3949018, 7898036, 9872545, 15796072, 19745090, 39490180, 78980360]

約数ペア:

[(1, 78980360), (2, 39490180), (4, 19745090), (5, 15796072), (8, 9872545), (10, 7898036), (20, 3949018), (40, 1974509), (61, 1294760), (122, 647380), (244, 323690), (305, 258952), (488, 161845), (610, 129476), (1220, 64738), (2440, 32369)]