80451875

素因数分解:

$5^4\times 7^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:142

約数の個数: 60

約数和(自身を含む): 121798512

約数和(自身を除く): 41346637

約数列:

[1, 5, 7, 25, 35, 37, 49, 71, 125, 175, 185, 245, 259, 355, 497, 625, 875, 925, 1225, 1295, 1775, 1813, 2485, 2627, 3479, 4375, 4625, 6125, 6475, 8875, 9065, 12425, 13135, 17395, 18389, 23125, 30625, 32375, 44375, 45325, 62125, 65675, 86975, 91945, 128723, 161875, 226625, 310625, 328375, 434875, 459725, 643615, 1133125, 1641875, 2174375, 2298625, 3218075, 11493125, 16090375, 80451875]

約数ペア:

[(1, 80451875), (5, 16090375), (7, 11493125), (25, 3218075), (35, 2298625), (37, 2174375), (49, 1641875), (71, 1133125), (125, 643615), (175, 459725), (185, 434875), (245, 328375), (259, 310625), (355, 226625), (497, 161875), (625, 128723), (875, 91945), (925, 86975), (1225, 65675), (1295, 62125), (1775, 45325), (1813, 44375), (2485, 32375), (2627, 30625), (3479, 23125), (4375, 18389), (4625, 17395), (6125, 13135), (6475, 12425), (8875, 9065)]