161719300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{379}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 374038560

約数和(自身を除く): 212319260

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 251, 340, 379, 425, 502, 758, 850, 1004, 1255, 1516, 1700, 1895, 2510, 3790, 4267, 5020, 6275, 6443, 7580, 8534, 9475, 12550, 12886, 17068, 18950, 21335, 25100, 25772, 32215, 37900, 42670, 64430, 85340, 95129, 106675, 128860, 161075, 190258, 213350, 322150, 380516, 426700, 475645, 644300, 951290, 1617193, 1902580, 2378225, 3234386, 4756450, 6468772, 8085965, 9512900, 16171930, 32343860, 40429825, 80859650, 161719300]

約数ペア:

[(1, 161719300), (2, 80859650), (4, 40429825), (5, 32343860), (10, 16171930), (17, 9512900), (20, 8085965), (25, 6468772), (34, 4756450), (50, 3234386), (68, 2378225), (85, 1902580), (100, 1617193), (170, 951290), (251, 644300), (340, 475645), (379, 426700), (425, 380516), (502, 322150), (758, 213350), (850, 190258), (1004, 161075), (1255, 128860), (1516, 106675), (1700, 95129), (1895, 85340), (2510, 64430), (3790, 42670), (4267, 37900), (5020, 32215), (6275, 25772), (6443, 25100), (7580, 21335), (8534, 18950), (9475, 17068), (12550, 12886)]