128366875

素因数分解:

$5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 80

約数和(自身を含む): 206084032

約数和(自身を除く): 77717157

約数列:

[1, 5, 7, 13, 25, 35, 37, 61, 65, 91, 125, 175, 185, 259, 305, 325, 427, 455, 481, 625, 793, 875, 925, 1295, 1525, 1625, 2135, 2257, 2275, 2405, 3367, 3965, 4375, 4625, 5551, 6475, 7625, 8125, 10675, 11285, 11375, 12025, 15799, 16835, 19825, 23125, 27755, 29341, 32375, 38125, 53375, 56425, 56875, 60125, 78995, 84175, 99125, 138775, 146705, 161875, 205387, 266875, 282125, 300625, 394975, 420875, 495625, 693875, 733525, 1026935, 1410625, 1974875, 2104375, 3469375, 3667625, 5134675, 9874375, 18338125, 25673375, 128366875]

約数ペア:

[(1, 128366875), (5, 25673375), (7, 18338125), (13, 9874375), (25, 5134675), (35, 3667625), (37, 3469375), (61, 2104375), (65, 1974875), (91, 1410625), (125, 1026935), (175, 733525), (185, 693875), (259, 495625), (305, 420875), (325, 394975), (427, 300625), (455, 282125), (481, 266875), (625, 205387), (793, 161875), (875, 146705), (925, 138775), (1295, 99125), (1525, 84175), (1625, 78995), (2135, 60125), (2257, 56875), (2275, 56425), (2405, 53375), (3367, 38125), (3965, 32375), (4375, 29341), (4625, 27755), (5551, 23125), (6475, 19825), (7625, 16835), (8125, 15799), (10675, 12025), (11285, 11375)]