77721875

素因数分解:

$5^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:79

約数の個数: 96

約数和(自身を含む): 134991360

約数和(自身を除く): 57269485

約数列:

[1, 5, 7, 11, 17, 19, 25, 35, 55, 77, 85, 95, 119, 125, 133, 175, 187, 209, 275, 323, 385, 425, 475, 595, 625, 665, 875, 935, 1045, 1309, 1375, 1463, 1615, 1925, 2125, 2261, 2375, 2975, 3125, 3325, 3553, 4375, 4675, 5225, 6545, 6875, 7315, 8075, 9625, 10625, 11305, 11875, 14875, 16625, 17765, 21875, 23375, 24871, 26125, 32725, 34375, 36575, 40375, 48125, 53125, 56525, 59375, 74375, 83125, 88825, 116875, 124355, 130625, 163625, 182875, 201875, 240625, 282625, 371875, 415625, 444125, 584375, 621775, 653125, 818125, 914375, 1009375, 1413125, 2220625, 3108875, 4090625, 4571875, 7065625, 11103125, 15544375, 77721875]

約数ペア:

[(1, 77721875), (5, 15544375), (7, 11103125), (11, 7065625), (17, 4571875), (19, 4090625), (25, 3108875), (35, 2220625), (55, 1413125), (77, 1009375), (85, 914375), (95, 818125), (119, 653125), (125, 621775), (133, 584375), (175, 444125), (187, 415625), (209, 371875), (275, 282625), (323, 240625), (385, 201875), (425, 182875), (475, 163625), (595, 130625), (625, 124355), (665, 116875), (875, 88825), (935, 83125), (1045, 74375), (1309, 59375), (1375, 56525), (1463, 53125), (1615, 48125), (1925, 40375), (2125, 36575), (2261, 34375), (2375, 32725), (2975, 26125), (3125, 24871), (3325, 23375), (3553, 21875), (4375, 17765), (4675, 16625), (5225, 14875), (6545, 11875), (6875, 11305), (7315, 10625), (8075, 9625)]