428240820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{1061}}^1$

素因数の和:1142

約数の個数: 144

約数和(自身を含む): 1417336704

約数和(自身を除く): 989095884

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 961, 1061, 1085, 1302, 1860, 1922, 2122, 2170, 2604, 2883, 3183, 3255, 3844, 4244, 4340, 4805, 5305, 5766, 6366, 6510, 6727, 7427, 9610, 10610, 11532, 12732, 13020, 13454, 14415, 14854, 15915, 19220, 20181, 21220, 22281, 26908, 28830, 29708, 31830, 32891, 33635, 37135, 40362, 44562, 57660, 63660, 65782, 67270, 74270, 80724, 89124, 98673, 100905, 111405, 131564, 134540, 148540, 164455, 197346, 201810, 222810, 230237, 328910, 394692, 403620, 445620, 460474, 493365, 657820, 690711, 920948, 986730, 1019621, 1151185, 1381422, 1973460, 2039242, 2302370, 2762844, 3058863, 3453555, 4078484, 4604740, 5098105, 6117726, 6907110, 7137347, 10196210, 12235452, 13814220, 14274694, 15294315, 20392420, 21412041, 28549388, 30588630, 35686735, 42824082, 61177260, 71373470, 85648164, 107060205, 142746940, 214120410, 428240820]

約数ペア:

[(1, 428240820), (2, 214120410), (3, 142746940), (4, 107060205), (5, 85648164), (6, 71373470), (7, 61177260), (10, 42824082), (12, 35686735), (14, 30588630), (15, 28549388), (20, 21412041), (21, 20392420), (28, 15294315), (30, 14274694), (31, 13814220), (35, 12235452), (42, 10196210), (60, 7137347), (62, 6907110), (70, 6117726), (84, 5098105), (93, 4604740), (105, 4078484), (124, 3453555), (140, 3058863), (155, 2762844), (186, 2302370), (210, 2039242), (217, 1973460), (310, 1381422), (372, 1151185), (420, 1019621), (434, 986730), (465, 920948), (620, 690711), (651, 657820), (868, 493365), (930, 460474), (961, 445620), (1061, 403620), (1085, 394692), (1302, 328910), (1860, 230237), (1922, 222810), (2122, 201810), (2170, 197346), (2604, 164455), (2883, 148540), (3183, 134540), (3255, 131564), (3844, 111405), (4244, 100905), (4340, 98673), (4805, 89124), (5305, 80724), (5766, 74270), (6366, 67270), (6510, 65782), (6727, 63660), (7427, 57660), (9610, 44562), (10610, 40362), (11532, 37135), (12732, 33635), (13020, 32891), (13454, 31830), (14415, 29708), (14854, 28830), (15915, 26908), (19220, 22281), (20181, 21220)]