173879775

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 326062464

約数和(自身を除く): 152182689

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 97, 155, 225, 257, 279, 291, 465, 485, 771, 775, 873, 1285, 1395, 1455, 2313, 2325, 2425, 3007, 3855, 4365, 6425, 6975, 7275, 7967, 9021, 11565, 15035, 19275, 21825, 23901, 24929, 27063, 39835, 45105, 57825, 71703, 74787, 75175, 119505, 124645, 135315, 199175, 224361, 225525, 358515, 373935, 597525, 623225, 676575, 772799, 1121805, 1792575, 1869675, 2318397, 3863995, 5609025, 6955191, 11591985, 19319975, 34775955, 57959925, 173879775]

約数ペア:

[(1, 173879775), (3, 57959925), (5, 34775955), (9, 19319975), (15, 11591985), (25, 6955191), (31, 5609025), (45, 3863995), (75, 2318397), (93, 1869675), (97, 1792575), (155, 1121805), (225, 772799), (257, 676575), (279, 623225), (291, 597525), (465, 373935), (485, 358515), (771, 225525), (775, 224361), (873, 199175), (1285, 135315), (1395, 124645), (1455, 119505), (2313, 75175), (2325, 74787), (2425, 71703), (3007, 57825), (3855, 45105), (4365, 39835), (6425, 27063), (6975, 24929), (7275, 23901), (7967, 21825), (9021, 19275), (11565, 15035)]