221510380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17387}}^1$

素因数の和:17423

約数の個数: 72

約数和(自身を含む): 582776208

約数和(自身を除く): 361265828

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 17387, 34774, 69548, 86935, 121709, 173870, 226031, 243418, 347740, 452062, 486836, 608545, 851963, 904124, 1130155, 1217090, 1582217, 1703926, 2260310, 2434180, 3164434, 3407852, 4259815, 4520620, 6328868, 7911085, 8519630, 11075519, 15822170, 17039260, 22151038, 31644340, 44302076, 55377595, 110755190, 221510380]

約数ペア:

[(1, 221510380), (2, 110755190), (4, 55377595), (5, 44302076), (7, 31644340), (10, 22151038), (13, 17039260), (14, 15822170), (20, 11075519), (26, 8519630), (28, 7911085), (35, 6328868), (49, 4520620), (52, 4259815), (65, 3407852), (70, 3164434), (91, 2434180), (98, 2260310), (130, 1703926), (140, 1582217), (182, 1217090), (196, 1130155), (245, 904124), (260, 851963), (364, 608545), (455, 486836), (490, 452062), (637, 347740), (910, 243418), (980, 226031), (1274, 173870), (1820, 121709), (2548, 86935), (3185, 69548), (6370, 34774), (12740, 17387)]