355248140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{1723}}^1$

素因数の和:1819

約数の個数: 72

約数和(自身を含む): 821541168

約数和(自身を除く): 466293028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 169, 244, 260, 305, 338, 610, 676, 793, 845, 1220, 1586, 1690, 1723, 3172, 3380, 3446, 3965, 6892, 7930, 8615, 10309, 15860, 17230, 20618, 22399, 34460, 41236, 44798, 51545, 89596, 103090, 105103, 111995, 206180, 210206, 223990, 291187, 420412, 447980, 525515, 582374, 1051030, 1164748, 1366339, 1455935, 2102060, 2732678, 2911870, 5465356, 5823740, 6831695, 13663390, 17762407, 27326780, 35524814, 71049628, 88812035, 177624070, 355248140]

約数ペア:

[(1, 355248140), (2, 177624070), (4, 88812035), (5, 71049628), (10, 35524814), (13, 27326780), (20, 17762407), (26, 13663390), (52, 6831695), (61, 5823740), (65, 5465356), (122, 2911870), (130, 2732678), (169, 2102060), (244, 1455935), (260, 1366339), (305, 1164748), (338, 1051030), (610, 582374), (676, 525515), (793, 447980), (845, 420412), (1220, 291187), (1586, 223990), (1690, 210206), (1723, 206180), (3172, 111995), (3380, 105103), (3446, 103090), (3965, 89596), (6892, 51545), (7930, 44798), (8615, 41236), (10309, 34460), (15860, 22399), (17230, 20618)]