161747200

素因数分解:

$2^8\times 5^2\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:352

約数の個数: 108

約数和(自身を含む): 405529600

約数和(自身を除く): 243782400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 199, 200, 254, 256, 320, 398, 400, 508, 635, 640, 796, 800, 995, 1016, 1270, 1280, 1592, 1600, 1990, 2032, 2540, 3175, 3184, 3200, 3980, 4064, 4975, 5080, 6350, 6368, 6400, 7960, 8128, 9950, 10160, 12700, 12736, 15920, 16256, 19900, 20320, 25273, 25400, 25472, 31840, 32512, 39800, 40640, 50546, 50800, 50944, 63680, 79600, 81280, 101092, 101600, 126365, 127360, 159200, 162560, 202184, 203200, 252730, 254720, 318400, 404368, 406400, 505460, 631825, 636800, 808736, 812800, 1010920, 1263650, 1273600, 1617472, 2021840, 2527300, 3234944, 4043680, 5054600, 6469888, 8087360, 10109200, 16174720, 20218400, 32349440, 40436800, 80873600, 161747200]

約数ペア:

[(1, 161747200), (2, 80873600), (4, 40436800), (5, 32349440), (8, 20218400), (10, 16174720), (16, 10109200), (20, 8087360), (25, 6469888), (32, 5054600), (40, 4043680), (50, 3234944), (64, 2527300), (80, 2021840), (100, 1617472), (127, 1273600), (128, 1263650), (160, 1010920), (199, 812800), (200, 808736), (254, 636800), (256, 631825), (320, 505460), (398, 406400), (400, 404368), (508, 318400), (635, 254720), (640, 252730), (796, 203200), (800, 202184), (995, 162560), (1016, 159200), (1270, 127360), (1280, 126365), (1592, 101600), (1600, 101092), (1990, 81280), (2032, 79600), (2540, 63680), (3175, 50944), (3184, 50800), (3200, 50546), (3980, 40640), (4064, 39800), (4975, 32512), (5080, 31840), (6350, 25472), (6368, 25400), (6400, 25273), (7960, 20320), (8128, 19900), (9950, 16256), (10160, 15920), (12700, 12736)]