21638115220

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1\times {\mathrm{27749}}^1$

素因数の和:28192

約数の個数: 48

約数和(自身を含む): 45948672000

約数和(自身を除く): 24310556780

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 307, 508, 614, 635, 1228, 1270, 1535, 2540, 3070, 6140, 27749, 38989, 55498, 77978, 110996, 138745, 155956, 194945, 277490, 389890, 554980, 779780, 3524123, 7048246, 8518943, 14096492, 17037886, 17620615, 34075772, 35241230, 42594715, 70482460, 85189430, 170378860, 1081905761, 2163811522, 4327623044, 5409528805, 10819057610, 21638115220]

約数ペア:

[(1, 21638115220), (2, 10819057610), (4, 5409528805), (5, 4327623044), (10, 2163811522), (20, 1081905761), (127, 170378860), (254, 85189430), (307, 70482460), (508, 42594715), (614, 35241230), (635, 34075772), (1228, 17620615), (1270, 17037886), (1535, 14096492), (2540, 8518943), (3070, 7048246), (6140, 3524123), (27749, 779780), (38989, 554980), (55498, 389890), (77978, 277490), (110996, 194945), (138745, 155956)]