201697900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 456689520

約数和(自身を除く): 254991620

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 157, 290, 314, 443, 580, 628, 725, 785, 886, 1450, 1570, 1772, 2215, 2900, 3140, 3925, 4430, 4553, 7850, 8860, 9106, 11075, 12847, 15700, 18212, 22150, 22765, 25694, 44300, 45530, 51388, 64235, 69551, 91060, 113825, 128470, 139102, 227650, 256940, 278204, 321175, 347755, 455300, 642350, 695510, 1284700, 1391020, 1738775, 2016979, 3477550, 4033958, 6955100, 8067916, 10084895, 20169790, 40339580, 50424475, 100848950, 201697900]

約数ペア:

[(1, 201697900), (2, 100848950), (4, 50424475), (5, 40339580), (10, 20169790), (20, 10084895), (25, 8067916), (29, 6955100), (50, 4033958), (58, 3477550), (100, 2016979), (116, 1738775), (145, 1391020), (157, 1284700), (290, 695510), (314, 642350), (443, 455300), (580, 347755), (628, 321175), (725, 278204), (785, 256940), (886, 227650), (1450, 139102), (1570, 128470), (1772, 113825), (2215, 91060), (2900, 69551), (3140, 64235), (3925, 51388), (4430, 45530), (4553, 44300), (7850, 25694), (8860, 22765), (9106, 22150), (11075, 18212), (12847, 15700)]