721808152

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1459}}^1$

素因数の和:1616

約数の個数: 64

約数和(自身を含む): 1501113600

約数和(自身を除く): 779305448

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 71, 104, 134, 142, 268, 284, 536, 568, 871, 923, 1459, 1742, 1846, 2918, 3484, 3692, 4757, 5836, 6968, 7384, 9514, 11672, 18967, 19028, 37934, 38056, 61841, 75868, 97753, 103589, 123682, 151736, 195506, 207178, 247364, 391012, 414356, 494728, 782024, 828712, 1270789, 1346657, 2541578, 2693314, 5083156, 5386628, 6940463, 10166312, 10773256, 13880926, 27761852, 55523704, 90226019, 180452038, 360904076, 721808152]

約数ペア:

[(1, 721808152), (2, 360904076), (4, 180452038), (8, 90226019), (13, 55523704), (26, 27761852), (52, 13880926), (67, 10773256), (71, 10166312), (104, 6940463), (134, 5386628), (142, 5083156), (268, 2693314), (284, 2541578), (536, 1346657), (568, 1270789), (871, 828712), (923, 782024), (1459, 494728), (1742, 414356), (1846, 391012), (2918, 247364), (3484, 207178), (3692, 195506), (4757, 151736), (5836, 123682), (6968, 103589), (7384, 97753), (9514, 75868), (11672, 61841), (18967, 38056), (19028, 37934)]