12780490790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{7243}}^1$

素因数の和:7557

約数の個数: 64

約数和(自身を含む): 24972675840

約数和(自身を除く): 12192185050

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 251, 370, 502, 703, 1255, 1406, 2510, 3515, 4769, 7030, 7243, 9287, 9538, 14486, 18574, 23845, 36215, 46435, 47690, 72430, 92870, 137617, 176453, 267991, 275234, 352906, 535982, 688085, 882265, 1339955, 1376170, 1764530, 1817993, 2679910, 3635986, 5091829, 9089965, 10183658, 18179930, 25459145, 34541867, 50918290, 67265741, 69083734, 134531482, 172709335, 336328705, 345418670, 672657410, 1278049079, 2556098158, 6390245395, 12780490790]

約数ペア:

[(1, 12780490790), (2, 6390245395), (5, 2556098158), (10, 1278049079), (19, 672657410), (37, 345418670), (38, 336328705), (74, 172709335), (95, 134531482), (185, 69083734), (190, 67265741), (251, 50918290), (370, 34541867), (502, 25459145), (703, 18179930), (1255, 10183658), (1406, 9089965), (2510, 5091829), (3515, 3635986), (4769, 2679910), (7030, 1817993), (7243, 1764530), (9287, 1376170), (9538, 1339955), (14486, 882265), (18574, 688085), (23845, 535982), (36215, 352906), (46435, 275234), (47690, 267991), (72430, 176453), (92870, 137617)]