161956400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1$

素因数の和:439

約数の個数: 120

約数和(自身を含む): 413675904

約数和(自身を除く): 251719504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 37, 40, 50, 62, 74, 80, 100, 124, 148, 155, 185, 200, 248, 296, 310, 353, 370, 400, 496, 592, 620, 706, 740, 775, 925, 1147, 1240, 1412, 1480, 1550, 1765, 1850, 2294, 2480, 2824, 2960, 3100, 3530, 3700, 4588, 5648, 5735, 6200, 7060, 7400, 8825, 9176, 10943, 11470, 12400, 13061, 14120, 14800, 17650, 18352, 21886, 22940, 26122, 28240, 28675, 35300, 43772, 45880, 52244, 54715, 57350, 65305, 70600, 87544, 91760, 104488, 109430, 114700, 130610, 141200, 175088, 208976, 218860, 229400, 261220, 273575, 326525, 404891, 437720, 458800, 522440, 547150, 653050, 809782, 875440, 1044880, 1094300, 1306100, 1619564, 2024455, 2188600, 2612200, 3239128, 4048910, 4377200, 5224400, 6478256, 8097820, 10122275, 16195640, 20244550, 32391280, 40489100, 80978200, 161956400]

約数ペア:

[(1, 161956400), (2, 80978200), (4, 40489100), (5, 32391280), (8, 20244550), (10, 16195640), (16, 10122275), (20, 8097820), (25, 6478256), (31, 5224400), (37, 4377200), (40, 4048910), (50, 3239128), (62, 2612200), (74, 2188600), (80, 2024455), (100, 1619564), (124, 1306100), (148, 1094300), (155, 1044880), (185, 875440), (200, 809782), (248, 653050), (296, 547150), (310, 522440), (353, 458800), (370, 437720), (400, 404891), (496, 326525), (592, 273575), (620, 261220), (706, 229400), (740, 218860), (775, 208976), (925, 175088), (1147, 141200), (1240, 130610), (1412, 114700), (1480, 109430), (1550, 104488), (1765, 91760), (1850, 87544), (2294, 70600), (2480, 65305), (2824, 57350), (2960, 54715), (3100, 52244), (3530, 45880), (3700, 43772), (4588, 35300), (5648, 28675), (5735, 28240), (6200, 26122), (7060, 22940), (7400, 21886), (8825, 18352), (9176, 17650), (10943, 14800), (11470, 14120), (12400, 13061)]