8078906875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{887}}^1$

素因数の和:998

約数の個数: 80

約数和(自身を含む): 11651270400

約数和(自身を除く): 3572363525

約数列:

[1, 5, 13, 19, 25, 59, 65, 95, 125, 247, 295, 325, 475, 625, 767, 887, 1121, 1235, 1475, 1625, 2375, 3835, 4435, 5605, 6175, 7375, 8125, 11531, 11875, 14573, 16853, 19175, 22175, 28025, 30875, 36875, 52333, 57655, 72865, 84265, 95875, 110875, 140125, 154375, 219089, 261665, 288275, 364325, 421325, 479375, 554375, 680329, 700625, 994327, 1095445, 1308325, 1441375, 1821625, 2106625, 3401645, 4971635, 5477225, 6541625, 7206875, 9108125, 10533125, 12926251, 17008225, 24858175, 27386125, 32708125, 64631255, 85041125, 124290875, 136930625, 323156275, 425205625, 621454375, 1615781375, 8078906875]

約数ペア:

[(1, 8078906875), (5, 1615781375), (13, 621454375), (19, 425205625), (25, 323156275), (59, 136930625), (65, 124290875), (95, 85041125), (125, 64631255), (247, 32708125), (295, 27386125), (325, 24858175), (475, 17008225), (625, 12926251), (767, 10533125), (887, 9108125), (1121, 7206875), (1235, 6541625), (1475, 5477225), (1625, 4971635), (2375, 3401645), (3835, 2106625), (4435, 1821625), (5605, 1441375), (6175, 1308325), (7375, 1095445), (8125, 994327), (11531, 700625), (11875, 680329), (14573, 554375), (16853, 479375), (19175, 421325), (22175, 364325), (28025, 288275), (30875, 261665), (36875, 219089), (52333, 154375), (57655, 140125), (72865, 110875), (84265, 95875)]