8420990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:137

約数の個数: 64

約数和(自身を含む): 17418240

約数和(自身を除く): 8997250

約数列:

[1, 2, 5, 10, 19, 23, 38, 41, 46, 47, 82, 94, 95, 115, 190, 205, 230, 235, 410, 437, 470, 779, 874, 893, 943, 1081, 1558, 1786, 1886, 1927, 2162, 2185, 3854, 3895, 4370, 4465, 4715, 5405, 7790, 8930, 9430, 9635, 10810, 17917, 19270, 20539, 35834, 36613, 41078, 44321, 73226, 88642, 89585, 102695, 179170, 183065, 205390, 221605, 366130, 443210, 842099, 1684198, 4210495, 8420990]

約数ペア:

[(1, 8420990), (2, 4210495), (5, 1684198), (10, 842099), (19, 443210), (23, 366130), (38, 221605), (41, 205390), (46, 183065), (47, 179170), (82, 102695), (94, 89585), (95, 88642), (115, 73226), (190, 44321), (205, 41078), (230, 36613), (235, 35834), (410, 20539), (437, 19270), (470, 17917), (779, 10810), (874, 9635), (893, 9430), (943, 8930), (1081, 7790), (1558, 5405), (1786, 4715), (1886, 4465), (1927, 4370), (2162, 3895), (2185, 3854)]