197902425

素因数分解:

$3^1\times 5^2\times 7^5\times {\mathrm{157}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 384159936

約数和(自身を除く): 186257511

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 157, 175, 245, 343, 471, 525, 735, 785, 1029, 1099, 1225, 1715, 2355, 2401, 3297, 3675, 3925, 5145, 5495, 7203, 7693, 8575, 11775, 12005, 16485, 16807, 23079, 25725, 27475, 36015, 38465, 50421, 53851, 60025, 82425, 84035, 115395, 161553, 180075, 192325, 252105, 269255, 376957, 420175, 576975, 807765, 1130871, 1260525, 1346275, 1884785, 2638699, 4038825, 5654355, 7916097, 9423925, 13193495, 28271775, 39580485, 65967475, 197902425]

約数ペア:

[(1, 197902425), (3, 65967475), (5, 39580485), (7, 28271775), (15, 13193495), (21, 9423925), (25, 7916097), (35, 5654355), (49, 4038825), (75, 2638699), (105, 1884785), (147, 1346275), (157, 1260525), (175, 1130871), (245, 807765), (343, 576975), (471, 420175), (525, 376957), (735, 269255), (785, 252105), (1029, 192325), (1099, 180075), (1225, 161553), (1715, 115395), (2355, 84035), (2401, 82425), (3297, 60025), (3675, 53851), (3925, 50421), (5145, 38465), (5495, 36015), (7203, 27475), (7693, 25725), (8575, 23079), (11775, 16807), (12005, 16485)]