199907300

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 450924264

約数和(自身を除く): 251016964

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 97, 100, 148, 185, 194, 370, 388, 485, 557, 740, 925, 970, 1114, 1850, 1940, 2228, 2425, 2785, 3589, 3700, 4850, 5570, 7178, 9700, 11140, 13925, 14356, 17945, 20609, 27850, 35890, 41218, 54029, 55700, 71780, 82436, 89725, 103045, 108058, 179450, 206090, 216116, 270145, 358900, 412180, 515225, 540290, 1030450, 1080580, 1350725, 1999073, 2060900, 2701450, 3998146, 5402900, 7996292, 9995365, 19990730, 39981460, 49976825, 99953650, 199907300]

約数ペア:

[(1, 199907300), (2, 99953650), (4, 49976825), (5, 39981460), (10, 19990730), (20, 9995365), (25, 7996292), (37, 5402900), (50, 3998146), (74, 2701450), (97, 2060900), (100, 1999073), (148, 1350725), (185, 1080580), (194, 1030450), (370, 540290), (388, 515225), (485, 412180), (557, 358900), (740, 270145), (925, 216116), (970, 206090), (1114, 179450), (1850, 108058), (1940, 103045), (2228, 89725), (2425, 82436), (2785, 71780), (3589, 55700), (3700, 54029), (4850, 41218), (5570, 35890), (7178, 27850), (9700, 20609), (11140, 17945), (13925, 14356)]