199889375

素因数分解:

$5^4\times 7^2\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:202

約数の個数: 60

約数和(自身を含む): 298085832

約数和(自身を除く): 98196457

約数列:

[1, 5, 7, 25, 35, 49, 61, 107, 125, 175, 245, 305, 427, 535, 625, 749, 875, 1225, 1525, 2135, 2675, 2989, 3745, 4375, 5243, 6125, 6527, 7625, 10675, 13375, 14945, 18725, 26215, 30625, 32635, 38125, 45689, 53375, 66875, 74725, 93625, 131075, 163175, 228445, 266875, 319823, 373625, 468125, 655375, 815875, 1142225, 1599115, 1868125, 3276875, 4079375, 5711125, 7995575, 28555625, 39977875, 199889375]

約数ペア:

[(1, 199889375), (5, 39977875), (7, 28555625), (25, 7995575), (35, 5711125), (49, 4079375), (61, 3276875), (107, 1868125), (125, 1599115), (175, 1142225), (245, 815875), (305, 655375), (427, 468125), (535, 373625), (625, 319823), (749, 266875), (875, 228445), (1225, 163175), (1525, 131075), (2135, 93625), (2675, 74725), (2989, 66875), (3745, 53375), (4375, 45689), (5243, 38125), (6125, 32635), (6527, 30625), (7625, 26215), (10675, 18725), (13375, 14945)]