79580540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{997}}^1$

素因数の和:1326

約数の個数: 48

約数和(自身を含む): 180741792

約数和(自身を除く): 101161252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307, 614, 997, 1228, 1535, 1994, 3070, 3988, 3991, 4985, 6140, 7982, 9970, 12961, 15964, 19940, 19955, 25922, 39910, 51844, 64805, 79820, 129610, 259220, 306079, 612158, 1224316, 1530395, 3060790, 3979027, 6121580, 7958054, 15916108, 19895135, 39790270, 79580540]

約数ペア:

[(1, 79580540), (2, 39790270), (4, 19895135), (5, 15916108), (10, 7958054), (13, 6121580), (20, 3979027), (26, 3060790), (52, 1530395), (65, 1224316), (130, 612158), (260, 306079), (307, 259220), (614, 129610), (997, 79820), (1228, 64805), (1535, 51844), (1994, 39910), (3070, 25922), (3988, 19955), (3991, 19940), (4985, 15964), (6140, 12961), (7982, 9970)]