188668620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{21391}}^1$

素因数の和:21420

約数の個数: 108

約数和(自身を含む): 665761824

約数和(自身を除く): 477093204

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 21391, 42782, 64173, 85564, 106955, 128346, 149737, 192519, 213910, 256692, 299474, 320865, 385038, 427820, 449211, 598948, 641730, 748685, 770076, 898422, 962595, 1048159, 1283460, 1347633, 1497370, 1796844, 1925190, 2096318, 2246055, 2695266, 2994740, 3144477, 3850380, 4192636, 4492110, 5240795, 5390532, 6288954, 6738165, 8984220, 9433431, 10481590, 12577908, 13476330, 15722385, 18866862, 20963180, 26952660, 31444770, 37733724, 47167155, 62889540, 94334310, 188668620]

約数ペア:

[(1, 188668620), (2, 94334310), (3, 62889540), (4, 47167155), (5, 37733724), (6, 31444770), (7, 26952660), (9, 20963180), (10, 18866862), (12, 15722385), (14, 13476330), (15, 12577908), (18, 10481590), (20, 9433431), (21, 8984220), (28, 6738165), (30, 6288954), (35, 5390532), (36, 5240795), (42, 4492110), (45, 4192636), (49, 3850380), (60, 3144477), (63, 2994740), (70, 2695266), (84, 2246055), (90, 2096318), (98, 1925190), (105, 1796844), (126, 1497370), (140, 1347633), (147, 1283460), (180, 1048159), (196, 962595), (210, 898422), (245, 770076), (252, 748685), (294, 641730), (315, 598948), (420, 449211), (441, 427820), (490, 385038), (588, 320865), (630, 299474), (735, 256692), (882, 213910), (980, 192519), (1260, 149737), (1470, 128346), (1764, 106955), (2205, 85564), (2940, 64173), (4410, 42782), (8820, 21391)]