81434851225

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{74419}}^1$

素因数の和:74499

約数の個数: 72

約数和(自身を含む): 128344136640

約数和(自身を除く): 46909285415

約数列:

[1, 5, 7, 13, 25, 35, 37, 65, 91, 169, 175, 185, 259, 325, 455, 481, 845, 925, 1183, 1295, 2275, 2405, 3367, 4225, 5915, 6253, 6475, 12025, 16835, 29575, 31265, 43771, 74419, 84175, 156325, 218855, 372095, 520933, 967447, 1094275, 1860475, 2604665, 2753503, 4837235, 6772129, 12576811, 13023325, 13767515, 19274521, 24186175, 33860645, 35795539, 62884055, 68837575, 88037677, 96372605, 169303225, 178977695, 250568773, 314420275, 440188385, 465342007, 481863025, 894888475, 1252843865, 2200941925, 2326710035, 3257394049, 6264219325, 11633550175, 16286970245, 81434851225]

約数ペア:

[(1, 81434851225), (5, 16286970245), (7, 11633550175), (13, 6264219325), (25, 3257394049), (35, 2326710035), (37, 2200941925), (65, 1252843865), (91, 894888475), (169, 481863025), (175, 465342007), (185, 440188385), (259, 314420275), (325, 250568773), (455, 178977695), (481, 169303225), (845, 96372605), (925, 88037677), (1183, 68837575), (1295, 62884055), (2275, 35795539), (2405, 33860645), (3367, 24186175), (4225, 19274521), (5915, 13767515), (6253, 13023325), (6475, 12576811), (12025, 6772129), (16835, 4837235), (29575, 2753503), (31265, 2604665), (43771, 1860475), (74419, 1094275), (84175, 967447), (156325, 520933), (218855, 372095)]